Mathematics

Burton

10 August, 06:41

Sara is completing the square to find the maximum or minimum value of the function f (x) = (2 - x) (5 + x). What is the first step that Sara must take? Does the function have a maximum or minimum value? What is that value?

A) multiply the binomials; maximum value; 49/4

B) multiply the binomials; minimum value; 49/4

C) set each factor equal to zero and solve for x; minimum value; - 2/5

D) set each factor equal to zero and solve for x; maximum value; - 7/2