Question

Use the equation y=-2x^2-2x-1 for the following :
a.) identify the intercepts
b.) determine the coordinates of the vertex
c.) state domain & range

Answer 1

for a: set y to 0 and solve for x to find the x intercepts. then set x to 0 and solve for y to find y intercepts

for b: complete the square or use the formula -b/2a

for c: quadratics have a domain of element of real numbers and a range that's equal to or less than the y value of your vertex.

Answer 2

still need help?

Answer 3

@dpaInc , yes i do