Graphs of Functions: Properties of Functions 575 se a graphing utility to graph each function over the indicated interval and cal maxima and local minima. Determine where the function is increasing and Round answers to two decimal places. (-2,2) 70. f(x) x 3x + 5; (-1,3) 72. f(x) x-x; (-2, 2) 4HLO003 x6; (-6, 4) 73 f(x 74. f(x) =-0.4x3 0.6x2 3x 2; (-4,5) U00 75. f(x)=0.2 3; (-3, 2) 76. f(x) 0.4x 0.5x3 0.8x2 2; (-3,2) 17, For the functic change: mpute each average rate of 1U (a) Determine the height of the golf ball after it has traveled 100 feet. (a) from 0 to 1 (c) from 0 to 0.1 (e) from 0 to 0.001 (f) Graph each of the secant lines. Set the viewing rectangle to: Xmin =-0.2, Xmax (b) What is the height after it has traveled 300 feet? (c) What is the height after it has traveled 500 feet? (d) How far was the golf ball hit? (e) Use a graphing utility to graph the function h (f) Use a graphing utility to determine the distance that the ball has traveled when the height of the ball is 90 feet. (g) Create a TABLE with TblStart (h) To the nearest 25 feet, how far does the ball travel before it reaches a maximum height? What is the maximum height? (i) Adjust the value of ATbl until you determine the dis- tance, to within 1 foot, that the ball travels before it reaches a maximum height. from 0 to 0.5 from 0 to 0.01 h(x) 1.2, Xscl 0.1, Ymin -0.2, Ymax 1.2, Yscl 0.1. 0 and ATbl Q(g) What do you think is happening to the secant lines? Q(h) What is happening to the slopes of the secant lines? Is there some number they are getting closer to? What is 25. 1 that number? 78. For the function f(x) x, compute each average rate of change: 80. Effect of Elevation on Weight If an object weighs m pounds at sea level, then its weight W (in pounds) at a height of h miles above sea level is given approximately by (a) from 1 to 2 (c) from 1 to 1.1 (e) from 1 to 1.001 L (f) Graph each of the secant lines. Set the viewing rectangle (b) from 1 to 1.5 (d) from 1 to 1.01 2 4000 Tel4 54 W (h) = m 4000h 0.1, Ymin - 1, 2.5, Xscl to: Xmin - 0.5, Xmax (a) If Amy weighs 120 pounds at sea level, how much will she weigh on Pike's Peak, which is 14,110 feet above sea level? (1 mile = 5280 feet) (b) Use a graphing utility to graph the function W = W(h) Use m = 4, Yscl 0.1 think is happening to the secant lines? Ymax What do you (h) What is happening to the slopes of the secant lines? Is there some number they are getting closer to? What is that number? 120 pounds. (c) Create a Table with TblStart 0 and ATbl how the weight W varies as h changes from 0 to 5 miles. (d) At what height will Amy weigh 119.95 pounds? (e) Does your answer to part (d) seem reasonable? 0.5 to see 79. Motion of a Golf Ball A golf ball is hit with an initial veloci- ty of 130 feet per second at an inclination of 45° to the hori- zontal. In physics, it is established that the height h of the golf ball is given by the function base 81. Constructing an Open Box An open box with a square is to be made from a square piece of cardboard 24 inches on a side by cutting out a square from each corner and turning up the sides (see the figure). -32x2 X h(x) 130 where x is the horizontal distance that the golf ball has traveled. do rey X X s х X 24 in 20 X X X 24 in.

Question

I need some help with number 79 d,e, and f

Graphs of Functions: Properties of Functions
575
se a graphing utility to graph each function over the indicated interval and
cal maxima and local minima. Determine where the function is increasing and
Round answers to two decimal places.
(-2,2)
70. f(x) x 3x + 5; (-1,3)
72. f(x) x-x; (-2, 2)
4HLO003
x6; (-6, 4)
73 f(x
74. f(x) =-0.4x3 0.6x2 3x 2; (-4,5)
U00
75. f(x)=0.2
3; (-3, 2)
76. f(x) 0.4x
0.5x3 0.8x2 2; (-3,2)
17, For the functic
change:
mpute each average rate of
1U
(a) Determine the height of the golf ball after it has traveled
100 feet.
(a) from 0 to 1
(c) from 0 to 0.1
(e) from 0 to 0.001
(f) Graph each of the secant lines. Set the viewing rectangle
to: Xmin =-0.2, Xmax
(b) What is the height after it has traveled 300 feet?
(c) What is the height after it has traveled 500 feet?
(d) How far was the golf ball hit?
(e) Use a graphing utility to graph the function h
(f) Use a graphing utility to determine the distance that the
ball has traveled when the height of the ball is 90 feet.
(g) Create a TABLE with TblStart
(h) To the nearest 25 feet, how far does the ball travel before it
reaches a maximum height? What is the maximum height?
(i) Adjust the value of ATbl until you determine the dis-
tance, to within 1 foot, that the ball travels before it
reaches a maximum height.
from 0 to 0.5
from 0 to 0.01
h(x)
1.2, Xscl 0.1, Ymin -0.2,
Ymax
1.2, Yscl
0.1.
0 and ATbl
Q(g) What do you think is happening to the secant lines?
Q(h) What is happening to the slopes of the secant lines?
Is there some number they are getting closer to? What is
25.
1
that number?
78. For the function f(x) x, compute each average rate of
change:
80. Effect of Elevation on Weight If an object weighs m
pounds at sea level, then its weight W (in pounds) at a height
of h miles above sea level is given approximately by
(a) from 1 to 2
(c) from 1 to 1.1
(e) from 1 to 1.001
L (f) Graph each of the secant lines. Set the viewing rectangle
(b) from 1 to 1.5
(d) from 1 to 1.01
2
4000
Tel4
54
W (h)
= m
4000h
0.1, Ymin
- 1,
2.5, Xscl
to: Xmin
- 0.5, Xmax
(a) If Amy weighs 120 pounds at sea level, how much will
she weigh on Pike's Peak, which is 14,110 feet above sea
level? (1 mile = 5280 feet)
(b) Use a graphing utility to graph the function W = W(h)
Use m =
4, Yscl 0.1
think is happening to the secant lines?
Ymax
What do
you
(h) What is happening to the slopes of the secant lines? Is
there some number they are getting closer to? What is
that number?
120 pounds.
(c) Create a Table with TblStart 0 and ATbl
how the weight W varies as h changes from 0 to 5 miles.
(d) At what height will Amy weigh 119.95 pounds?
(e) Does your answer to part (d) seem reasonable?
0.5 to see
79. Motion of a Golf Ball A golf ball is hit with an initial veloci-
ty of 130 feet per second at an inclination of 45° to the hori-
zontal. In physics, it is established that the height h of the
golf ball is given by the function
base
81. Constructing an Open Box An open box with a square
is to be made from a square piece of cardboard 24 inches on
a side by cutting out a square from each corner and turning
up the sides (see the figure).
-32x2
X
h(x)
130
where x is the horizontal distance that the golf ball has traveled.
do rey
X
X
s
х
X
24 in
20
X
X
X
24 in.
Expand
Transcribed Image Text

Graphs of Functions: Properties of Functions 575 se a graphing utility to graph each function over the indicated interval and cal maxima and local minima. Determine where the function is increasing and Round answers to two decimal places. (-2,2) 70. f(x) x 3x + 5; (-1,3) 72. f(x) x-x; (-2, 2) 4HLO003 x6; (-6, 4) 73 f(x 74. f(x) =-0.4x3 0.6x2 3x 2; (-4,5) U00 75. f(x)=0.2 3; (-3, 2) 76. f(x) 0.4x 0.5x3 0.8x2 2; (-3,2) 17, For the functic change: mpute each average rate of 1U (a) Determine the height of the golf ball after it has traveled 100 feet. (a) from 0 to 1 (c) from 0 to 0.1 (e) from 0 to 0.001 (f) Graph each of the secant lines. Set the viewing rectangle to: Xmin =-0.2, Xmax (b) What is the height after it has traveled 300 feet? (c) What is the height after it has traveled 500 feet? (d) How far was the golf ball hit? (e) Use a graphing utility to graph the function h (f) Use a graphing utility to determine the distance that the ball has traveled when the height of the ball is 90 feet. (g) Create a TABLE with TblStart (h) To the nearest 25 feet, how far does the ball travel before it reaches a maximum height? What is the maximum height? (i) Adjust the value of ATbl until you determine the dis- tance, to within 1 foot, that the ball travels before it reaches a maximum height. from 0 to 0.5 from 0 to 0.01 h(x) 1.2, Xscl 0.1, Ymin -0.2, Ymax 1.2, Yscl 0.1. 0 and ATbl Q(g) What do you think is happening to the secant lines? Q(h) What is happening to the slopes of the secant lines? Is there some number they are getting closer to? What is 25. 1 that number? 78. For the function f(x) x, compute each average rate of change: 80. Effect of Elevation on Weight If an object weighs m pounds at sea level, then its weight W (in pounds) at a height of h miles above sea level is given approximately by (a) from 1 to 2 (c) from 1 to 1.1 (e) from 1 to 1.001 L (f) Graph each of the secant lines. Set the viewing rectangle (b) from 1 to 1.5 (d) from 1 to 1.01 2 4000 Tel4 54 W (h) = m 4000h 0.1, Ymin - 1, 2.5, Xscl to: Xmin - 0.5, Xmax (a) If Amy weighs 120 pounds at sea level, how much will she weigh on Pike's Peak, which is 14,110 feet above sea level? (1 mile = 5280 feet) (b) Use a graphing utility to graph the function W = W(h) Use m = 4, Yscl 0.1 think is happening to the secant lines? Ymax What do you (h) What is happening to the slopes of the secant lines? Is there some number they are getting closer to? What is that number? 120 pounds. (c) Create a Table with TblStart 0 and ATbl how the weight W varies as h changes from 0 to 5 miles. (d) At what height will Amy weigh 119.95 pounds? (e) Does your answer to part (d) seem reasonable? 0.5 to see 79. Motion of a Golf Ball A golf ball is hit with an initial veloci- ty of 130 feet per second at an inclination of 45° to the hori- zontal. In physics, it is established that the height h of the golf ball is given by the function base 81. Constructing an Open Box An open box with a square is to be made from a square piece of cardboard 24 inches on a side by cutting out a square from each corner and turning up the sides (see the figure). -32x2 X h(x) 130 where x is the horizontal distance that the golf ball has traveled. do rey X X s х X 24 in 20 X X X 24 in.

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