Question

Find the y-intercept of y = x² + 2x + 8

Answer 1

8

`y = {x}^(2) + 2x + 8 \\ \\ plug \: x = 0 \\ \\ y = {0}^(2) + 2 * 0 + 8 \\ \\ y = 0 + 0 + 8 \\ \\ y = 8 \\`

Hence, y - intercept = 8

Answer 2

The y intercept is 8

Explanation:

The y intercept is when x=0

y = x² + 2x + 8

Let x=0

y = 0 +2(0) +8

y=8

The y intercept is 8