Question

what is the y-intercept of the polynomial $f(x)$ defined below? write the y-value only. $f(x) = -x^4 - 9x^2 - 1$

Explanation:

Step1: Substitute x=0 into f(x)

$f(0) = -(0)^4 - 9(0)^2 - 1$

Step2: Simplify the expression

$f(0) = 0 - 0 - 1 = -1$

Answer:

-1