The graph of quadratic function f has zeros of -8 and 4 and a maximum at (-2,18). What is the value of a in the function’s equation?

A. 1/2

B. 7/2

C. - 3/2

D. - 1/2

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2