Question

Find the y-coordinate of the y-intercept of the polynomial function defined below.

f(x) = 2(5x² − 2)(x − 5) (4x² − 2)

Answer 1

-40

Explanation:

The y-intercept occurs when x is equal to 0. In order to find the y-coordinate, you would just plug in x with 0:

2(5x² − 2)(x − 5) (4x² − 2)

2(5[0]^2 - 2)(0 - 5)(4[0]^2 - 2)

2(-2)(-5)(-2)

-40