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3 years ago

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

Mathematics

1 answer:

laila [671]3 years ago

5 0

Answer:

C f(x) = 4(x+1)2-1

Step-by-step explanation:

factor of 4 = 2^2

(x+1)2-1 = 4(x+1) 2-1 = with x

= 4(+1) 2-1 = without x

= (4 - 4) 2 = individual products of -1

= (8 - 8 ) = individual products of 2

= 8 - 8 = 2^2 -2^2

= 2^2 - 2^2

(x+1)2-1 = 4(x+1)2-1 = with x

= 2x^2 -2^2

-x = 2^2 -2^2

x = -2^2-2^2

x = 4

which proves f(x) is a factor of 4

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