100 points, hi, i’m not sure how to get the equation from the graph and table.

y = -(x-15)^2 +225

Step-by-step explanation:

We know that this is parabolic because it goes up and then down

The formula for a parabola is

y = a(x-h) ^2 +k

(h,k) is the vertex of the parabola (the max or min point)

We have  the point (15,225)  which is our vertex

y = a(x-15)^2 +225

We also have the point (0,0) which we can substitute in to find a

0 = a(0-15)^2 +225

0 = a(225) +225

Subtract 225 from each side

-225 = 225a

Divide by 225

-1 =a

So our equation is

y = -(x-15)^2 +225