Question

Choose the equation below that corresponds to the graph shown.

graph of a u-shaped figure opening downward with a maximum point of (-2, -2)
Answer

y = -3x2 - 12x - 14

y = 3x2 + 12x - 14

y = -3x2 + 12x - 14

y = 3x2 - 12x - 14

Answer 1

Sorry, forgot to put the ^ sign before the square in each first term. Each is 3x^2 (or -3x^2).

Answer 2

ax^2+bx+c
if a>0, parabola opens up and has a min at the vertex
if a<0, parabola opens down and has a max at the vertex
b/(2a) will give the x-coordinate of your vertex
plug b/(2a) back into the function to get the y-coordinate

So the answer here is A, because it opens down and has a max,
and the x-coordinate of the vertex is 12/-6=-2
the y-coordinate of the vertex is: -3(-2)^2-12(-2)-14=

Answer 3

Thank you