Consider the function ƒ(x) = (x + 1)2 – 1. Which of the following functions stretches ƒ(x) vertically by a factor of 4? Question 8 options:

A)

ƒ(x) = 1∕4(x + 1)2 – 4

B)

ƒ(x) = 4(4x + 1)2 – 1

C)
ƒ(x) = (1∕4x + 1)2 + 3

D)

ƒ(x) = 4(x + 1)2 – 1

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x