Question

If you apply the changes below to the linear parent function, f(x) = x, what is the equation fo the new function?

Answer 1

Answer:

D

Step-by-step explanation:

For a function in the form f(x) = x, we can say:

• the function f(x) = ax is a vertical stretch if a>1 and compress if 0<a<1
• the function -f(x) is the original, flipped over x-axis

keeping the 2 rules in mind, we can say that

vertical stretch by a factor of 3 would make it f(x) = 3x

Then

flip over x-axis would make it f(x) = -3x

answer choice D is right