the vrtex os this parabola is at (-2,-3) when the y value is -2 the x value is -5 what is the coefficient of the squared term in the parabolas equation?
+37153 Vertex form of parabola
y = a (x- -2)^2 -3
= a ( x+2)^2 -3 sub in the point given to calculate 'a'
-2 = a (-5+2)^2 - 3
a = 1/9
y = 1/9 (x+2)^2 -3 <======== expand this to find your answer ( well....you really should be able to see the answer without expanding)
