If the solid line models the function f(x) = |x2|

, what is the equation of the transformed function (dotted line) which vertically stretched the starting function by a factor of 3?

(1 point)
Responses

f(x) = x2−3
f(x) = x2−3

f(x) = x2+3
f(x) = x2+3

f(x) = 3|x2|
f(x) = 3|x2|

f(x) = |(x+3)2|
f(x) = |(x+3)2|
Question 2
9.

Identify the factor k that would cause the vertical compression (solid line) to the dilated function (the dotted line). Note: It might be helpful to notice a point on the dilated function and find the corresponding point on the original function to help determine the value of k.

(1 point)
Answer should be a whole number or a simplified fraction (no decimals).

k=

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

To answer the first question, we start with the function \( f(x) = |x^2| \). To stretch the function vertically by a factor of 3, we multiply the entire function by 3. The equation of the transformed function will be:

\[ f(x) = 3|x^2| \]

So the correct response is:

f(x) = 3|x^2|


For the second question, if we have the dotted line representing a vertically stretched function, \( g(x) = 3|x^2| \), and we want to find the factor \( k \) that would cause a vertical compression back to the original function \( f(x) = |x^2| \), we can express that as:

\[ f(x) = k \cdot g(x) \]

Given that \( g(x) = 3|x^2| \) and the original function \( f(x) = |x^2| \):

Setting them equal:

\[ |x^2| = k \cdot (3|x^2|) \]

To find \( k \):

\[ k \cdot 3|x^2| = |x^2| \Rightarrow k = \frac{|x^2|}{3|x^2|} \]

For \( |x^2| \neq 0 \):

\[ k = \frac{1}{3} \]

So the answer for \( k \) is:

k = \(\frac{1}{3}\)