Question

Write the equation y = -x2 – 3x in vertex form. What is the vertex and the axis of symmetry?

Answer 1

y = -x2 – 3x
y = -x2 – 2*(3/2) x -9/4 +9/4
(y-9/4)=-(x-3/2)^2
vertex 3/2,9/4

and axis is -ve direction of x=3/2

Answer 2

thanx again