SOLUTION: I have to graph -3x^2-6x-5. I found the vertex only I'm having problem finding the other points to make the parabola. The negatives are giving me the problems.

Algebra ->  Coordinate-system -> SOLUTION: I have to graph -3x^2-6x-5. I found the vertex only I'm having problem finding the other points to make the parabola. The negatives are giving me the problems.       Log On


   

Question 242361: I have to graph -3x^2-6x-5. I found the vertex only I'm having problem finding the other points to make the parabola. The negatives are giving me the problems.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y=-3x%5E2-6x-5+
Do the positive and negative values of x side by side.
Only the sign of the x term changes.
x=0, y=-5
x=1, y=-3-6-5=-14
x=-1, y=-3%2B6-5=-2
x=2, y=-12-12-5=-29
x=-2, y=-12%2B12-5=-5
x=3, y=-27-18-5=-50
x=-3, y=-27%2B18-5=-14
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+graph%28+300%2C+300%2C+-5%2C+5%2C+-50%2C+50%2C+-3x%5E2-6x-5%29+