Consider the function ƒ(x) = (x + 1)2 – 1. Which of the following functions stretches ƒ(x) vertically by a factor of 4? Question options: A) ƒ(x) = 1∕4(x + 1)2 – 4 B) ƒ(x) = 4(4x + 1)2 – 1 C) ƒ(x) = 4(x + 1)2 – 1 D) ƒ(x) = (1∕4x + 1)2 + 3

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

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