An applicable equation of a vertical parabola in vertex form is:
y-k = a(x-h)^2
Let x=2, y=4, h=-1 and k=-1, where (h,k) is the vertex. Then,
4-(-1) = a(2-[-1])^2, which becomes 5 = a(9). Therefore, a = 5/9, and the
equation of the parabola is
y+1 = (5/9)(x+1)
No its not an rational number.The answer is no
The correct answer is that it starts at one and multiplies by two repeatedly. EX. 1*2 = 2 2*2 = 4 (This shows that it matches up with the given values in the sequence)
He ate 7/12 of the pizza because 1x4=4, 1x3=3, 4+3=7, and 4x3=12.
Hope that helps.
