Question

what is the y-intercept of the function f(x)=4 - 5x?
-5
-4
4
5

Explanation:

Step1: Recall y-intercept definition

The y-intercept of a function \( f(x) \) is the value of \( f(x) \) when \( x = 0 \).

Step2: Substitute \( x = 0 \) into \( f(x) \)

Given \( f(x)=4 - 5x \), substitute \( x = 0 \):
\( f(0)=4 - 5(0) \)
Simplify: \( 4 - 0 = 4 \).

Answer:

4 (corresponding to the option "4")