Select the correct answer. if the zeros of a quadratic function are 3 and 8, what are the factors of the function? a. (x + 8) and (x − 3) b. (x − 8) and (x + 3) c. (x + 8) and (x + 3) d. (x − 8) and (x − 3)

C. (x-8) and (x-3)

Step-by-step explanation:

When we calculate the zeros of a function, we are calculating the points where that function crosses the x axis, and to do so we have to equal the function to zero and isolate X.

The only way a multiplication can have a result of 0, is that any of it's factors were equal to zero. So we can take both factors and equal them to zero and isolate x to know the function's zeros.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13