y=−16x 2 +152x+74 100th per second

Question

y=−16x2+152x+74 100th per second

Answer 1

y= -16x²+152x+74

it is a quadratic polynomial with a negative leading coefficient. So it is a downward parabola. we need to tind x coordinate of the vertex.

then f(x)= ax² +bx +c

vertex = -b/2a where a= -16, b= 152, c= 74

plus these values in the formula - 152/2(-16)

=152/-32

=4.75