The function p(x) = –8x2 – 64x can be written in vertex form p(x) = a(x – h)2 + k, where a =, h =, and k =. To graph the function p, reflect the graph of f(x) = x2 across the x-axis, vertically stretch the graph by a factor of 8, shift the graph units, and then shift the graph units.

Accepted Solution

a= -8

h= -4

k= 128

Shift the graph left 4 units.

Then shift the graph up 128 units.