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July 5, 2015

Homework Help: Algebra 1 parabola's

Posted by HELP on Thursday, September 5, 2013 at 5:11pm.

I have a graph with a parabola on it and asked to write the function for f(x) in standard form.
I know that standard is y=ax^2+bx+c obviously, since the points are on the graph we know x and y so a,b and c need to be found. The vertex is on (4,-4) the points on the left side of the parabola from the vertex up are (3,-3) (2,0) and (1,5). On the right side upwards from the vertex is (5,3) (6,0) and (7,5) I started at the origin to find all the points so if u plot them all and draw te curved lines u will have what I have. Now what do I do???

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