Question

The function f(x) is shown on the graph.

Answer 1

F(0) is a y-intercept.

f(0) = -6

Answer 2

we know that

The value of x is zero when the function intercept the y-coordinate

In this problem, the function intercept the y-coordinate at the point $(0,-6)$ only

so

$f(0)=-6$

therefore

the answer is the option

b. –6 only