Find the y-intercept for the graph of the quadratic function.
-$$f ( x ) = - x ^ { 2 } - 2 x + 8$$
A) $( 8,0 )$
B) $( 0 , - 8 )$
C) $( 0,8 )$
D) $( 0 , - 4 )$

Question

Quizplus · Accepted Answer

The y-intercept of a function is found by setting $x = 0$. Substituting $x = 0$ into the given function $f(x) = -x^2 - 2x + 8$ gives $f(0) = -(0)^2 - 2(0) + 8 = 8$, so the y-intercept is $(0, 8)$.

Find the Y-Intercept for the Graph of the Quadratic Function f(x)=−x2−2x+8f ( x ) = - x ^ { 2 } - 2 x + 8f(x)=−x2−2x+8

Find the Y-Intercept for the Graph of the Quadratic Function $f ( x ) = - x ^ { 2 } - 2 x + 8$