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?

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01-05-2017
Mathematics

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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?

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Аноним Аноним · Answer 1 · 2017-05-01T19:20:52+02:00

Аноним Аноним

01-05-2017

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

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