The vertex of a parabola is (3,2). A second point on the parabola is (1,5). Which of the following points is also on the graph?
Mathematics
charliecoats4361
Question
The vertex of a parabola is (3,2). A second point on the parabola is (1,5). Which of the following points is also on the graph?
1 Answer

1. User Answers Anonym
in vertex form the parabola would be:
y = a(x  3)^2 + 2 where a is some constant
If you plug in the other point: x = 1 and y = 5 you can find value of a:_
5 = 4a + 2
4a = 3
a = 3/4
so the equation is y = (3/4)(x  3)^2 + 2