Graph the equation. identify the vertex and the axis of symmetry.
y=-3x^2-6

select one:
a. vertex: (0, 6)
axis of symmetry: x = 0

b. vertex: (6,0)
axis of symmetry: x = 6

c. vertex: (0, -6)axis of symmetry: x = 0
d. vertex: (-6, 0)
axis of symmetry: x = -6

3+x

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.

your answer is  

d.

196.5 m2

step-by-step explanation:

the correct answer is c

good luck love