Which expression is equivalent to 5(2 + 7)? 2(5 + 7)2 + 7(5)5(2) + 75(2) + 5(7)

5. To figure this out you must find when y = 0

-16t^2 = -200

t^2 = 12.5

Square root

t = 3.54 C

6.

Axis of symetry = -.5 (always a vertical line down vertex)

Vertex = (-.5, -6.5) (the minimum of the graph)

B

7. To find maximum height you must find the vertex

The maximum height is 549 feet after 5.75 seconds

C

9. Solve for X

x^2 = 1

Square root

X = plus or minus 1

A