SOLUTION: what is the answer and how do i graph y=-4x^2+8x-9

Question 956453: what is the answer and how do i graph y=-4x^2+8x-9
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Basic idea:

1) Determine which points lie on this curve. So you plug in various values of x to get corresponding values of y. If x = 0, then y = -9. So we know the point (0,-9) lies on this curve. If x = 1, then y = -5. The point (1,-5) lies on this curve as well. Do this a bunch of times to generate a bunch of points. A table is a handy tool to keep track of them all.

2) Plot all of the points found in step 1. This all happens on the same xy coordinate axis

3) Draw a curve through all of the points. The more points, the more accurate the graph.

You should get something like this

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