Question

Find the y-intercept for the parabola defined by this equation: y= -4x^2 – 12x – 8 Separate the values with a comma.

Answer 1

To find the y-intercept, input x = 0 in the equation

$\begin{gathered} y=-4x^2\text{ - 12x - 8} \\ y\text{ = }-4(0)^2\text{ - 12(0) - 8} \\ y\text{ = 0 - 0 - 8} \\ y\text{ = -8} \end{gathered}$

Y-intercept is ( 0, -8)