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OpenStudy (anonymous):
Parabola Question (see image below) Parabola Question (see image below) @Mathematics
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OpenStudy (anonymous):
OpenStudy (mertsj):
The vertex is (0,5) so the y-intercept which is c is 5. So now we have ax^2 +bx + 5 = y. Also (3.1,0) is on the graph which means that (-3.1,0) is also on the graph. Plug these points in and you get two equations: 9.61a + 3.1b+5=0 and 9.61a -3.1b +5 = 0. Solve simultaneously and get a = -.52. Plug that in and solve for b. b=0 so the equation is y = -.52x^2 + 0x +5
OpenStudy (anonymous):
Thank you! This is a lot easier to understand than the explanation I got involving calculus haha
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