Question

What is the y-intercept of the quadratic function
f(x) = (x+1) (x+7) if X = 0

Answer 1

Answer: 7

Explanation:

f(x)=(x+1)(x+7)

If x=0

f(0)=(0+1)(0+7)

=1*7

=7

Answer 2

7

Explanation:

`f(x) = (x+1) (x+7) \: \: \: if \: \: \: \: \: x = 0 \\ (0 + 1)(0 + 7) \\ 1(7) \\ 7`