start with quadratic function is f(x)= ax^2 + bx + c and follow the images questions

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.3: The Natural Exponential Function
Problem 4E
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start with quadratic function is f(x)= ax^2 + bx + c and follow the images questions

f(₂)=(x + 2)² +5
(a) Step 1: Show that f(¹)
a
Transcribed Image Text:f(₂)=(x + 2)² +5 (a) Step 1: Show that f(¹) a
6²
(c) Step 3: Go back to Step 1, and look at that part of that does not depend upon
x. Call it K = +. Show that K can be positive or negative depending upon
the values of the parameters (a, b, c). Show that the effect of K is to shift (x+2)²
up or down by a constant amount. Conclude that f(x)
2a
(x + 2)² - ² + is
a
2
a
=
simply the function 2² shifted horizontally so it sits at x =
2a
and then it is shifted up or down by the amount K: upwards when K > 0 and
downwards when K <0. See hint in Step 4.
on the x-axis
Transcribed Image Text:6² (c) Step 3: Go back to Step 1, and look at that part of that does not depend upon x. Call it K = +. Show that K can be positive or negative depending upon the values of the parameters (a, b, c). Show that the effect of K is to shift (x+2)² up or down by a constant amount. Conclude that f(x) 2a (x + 2)² - ² + is a 2 a = simply the function 2² shifted horizontally so it sits at x = 2a and then it is shifted up or down by the amount K: upwards when K > 0 and downwards when K <0. See hint in Step 4. on the x-axis
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