If (x+k) is a favor of f(x) which of the following must be true? a) f(k)=0 b) f(-k)=0 c) a root of f(x) is x=k d) a y-intercept of f(x) is x=-k

B

Step-by-step explanation:

A factor of f(x) has the form (x+k). We know to find the zeros or roots of the function we set the factors equal to 0.

So (x+k)=0 and solve for x. x=-k. This means f(-k)=0.

it is probably the graph on the bottom right.

b

step-by-step explanation: