Answer:

Step-by-step explanation:
Hi there!
Because we're given the vertex of the parabola, we can determine its equation in vertex form:
where the vertex is 
Plug in the vertex (0,0)

Now, we must solve for a. Plug in the given point (-2,3) and solve for a:

Therefore, the value of a is
. Plug this back into
:

I hope this helps!
3x+3=-2-12
Combine the -2 and -12 and it'll get you:
3x+3=-14
Then combine like terms on both sides (subtract 3 on both sides):
3x= -17
Then divide 3x from both sides:
-5.66 (repeating decimal)
Answer:
m= 2/3
Step-by-step explanation:
m= rise/ run
Because you have a visual, the easiest way would be to count units up over units to the right.
Starting from (-2, 0) and going to (1, 2) that is 2 units up and 3 units to the right. It also cannot be simplified further.