SOLUTION: I was reviewing the quadratic equation y=-3x^2-6x-5 for problem #252391. I had already found that if x=0 then y=-5. I'm having trouble creating a table of ordered pairs to use in

Question 307412: I was reviewing the quadratic equation y=-3x^2-6x-5 for problem #252391. I had already found that if x=0 then y=-5. I'm having trouble creating a table of ordered pairs to use in graphing using excel. I would think I need at least 3 sets of ordered pairs to be able to do this. Can someone show me what other pairs to use and how they were figured. I want to understand this, I'm not very good at these equations. Thanks!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
To find ordered pairs, just plug in arbitrary x values to find their corresponding y values.

If , then giving you the ordered pair (2,-29)

If , then giving you the ordered pair (1,-14)

If , then giving you the ordered pair (0,-5)

If , then giving you the ordered pair (-1,-2)

If , then giving you the ordered pair (-2,-5)

If , then giving you the ordered pair (-3,-14)

If , then giving you the ordered pair (-4,-29)

Once you have your ordered pairs, which are essentially points, plot them on a grid and draw a parabola through them.
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