
Multiply -7 to both sides:
Add 10 to both sides:
Divide 2 to both sides:
If 455 changes to a higher number the mean which is the average should increase to a higher number
Answer: A. x ≤ -3
x/3 - x-1/2 ≥ 1 would make x ≤ -3
General equation of parabola: y-k = a(x-h)^2
Here the vertex is at (0,0), so we have y-0 = a(x-0)^2, or y = ax^2
All we have to do now is to find the value of the coefficient a.
(1,2) is on the curve. Therefore, 2 = a(1)^2, or 2 = a(1), or a = 2.
The equation of this parabola is y = 2x^2.