Question

What is the y-intercept, given the equation: y=x^2+2x−8?


Write your response as an ordered pair.

Answer 1

Answer:

y-intercept is (0, -8)

Step-by-step explanation:

$y = {x}^{2} + 2x - 8$

At y-intercept, x is zero

substitute x as zero:

$y = {(0)}^{2} + 2(0) - 8 \\ y = 0 + 0 - 8 \\ y = - 8$