Answer:
1) a is the coefficient of x²
a) 3
b) 0.5
c) -4
d) -0.1
2) for h, equate the whole square to 0
a) (x-4) = 0 x = 4
h = 4
b) (x+2) = 0 x = -2
h = -2
c) (x - -6) = 0 x = -6
h = -6
3) k is the constant added outside the square
a) -7
b) 3
c) 1.5
4) compare to y = a(x-h)²+I
a) a = 5, h =1, k = 3
b) a = -1, h = 10, k = 8
c) a = -0.3, h = 0, k = -2
a causes a stretch parallel to y-axis
h causes a horizontal shift
k causes a vertical shift
