SOLUTION: Determine whether the graph of y=3x^2+2x&#8722; 10 opens up or down and whether it has a maximum or minimum point.

Algebra ->  -> SOLUTION: Determine whether the graph of y=3x^2+2x&#8722; 10 opens up or down and whether it has a maximum or minimum point.       Log On

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 Question 457714: Determine whether the graph of y=3x^2+2x− 10 opens up or down and whether it has a maximum or minimum point. Answer by Edwin McCravy(9717)   (Show Source): You can put this solution on YOUR website!```Rule for y = ↏x² ± ↏x ± ↏ where there are numbers in the boxes and the sign ± could either be + or -: If the coefficient of x² is a POSITIVE number, the graph looks like this: which opens UPWARD and has a MINIMUM point at the bottom. ------------------------------------------- If the coefficient of x² is a NEGATIVE number, the graph looks like this which opens DOWNWARD and has a MAXIMUM point at the top. ------------------------------------------- Your equation is y = 3x² + 2x − 10 and the coefficient of x² is 3, and 3 is a POSITIVE number, so its graph is the first kind. It opens UPWARD and has a MINIMUM point at the bottom. If fact here is the graph of your equation: Edwin```