For Exercises 65−74, a. Use slope-intercept form to write an equation of the line that passes through the given point and has the given slope. b. Write the equation using function notation where y = f ( x ). (See Example 5 ) 65. ( 0 , 9 ) ; m = 1 2
For Exercises 65−74, a. Use slope-intercept form to write an equation of the line that passes through the given point and has the given slope. b. Write the equation using function notation where y = f ( x ). (See Example 5 ) 65. ( 0 , 9 ) ; m = 1 2
Solution Summary: The author explains how the equation of line passes through the given point and slope by slope-intercept.
For Exercises 65−74, a. Use slope-intercept form to write an equation of the line that passes through the given point and has the given slope. b. Write the equation using function notation where y = f(x). (See Example 5 ) 65.
(
0
,
9
)
;
m
=
1
2
A farmer finds there is a linear relationship between the number of bean stalks, n, she plants and the yield, y, each plant produces. When she plants 30 stalks, each plant yields 30 oz of beans. When she plants 34 stalks, each plant produces 28 oz of beans.
Is the function from part (a) increasing or decreasing? How do you know?
Use the slope-intercept form to write an equation of the line that passes through the given point and has the given slope. Use function notation
where y = f(x).
(-2.5, 4.3); m = -5.2
Select one:
O a. f (x) = -8.7x - 5.2
O b. f (x) = -5.2x + 8.7
O c. f(x) = -5.2x + 4.3
O d. f(x) = -5.2x - 8.7
Which statement(s) correctly describe y-intercepts? Which all apply?
A. The y-intercept of a function is the point where the line intersects the y-axis.
B. The y-intercept of a function is the point at which x = 0.
C. The y-value of the y-intercept is the same as the starting value, b.
Chapter 2 Solutions
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