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Mathematics 9 Online
OpenStudy (anonymous):

Which coefficient in the function tells us that the parabola for the function will point downward? y = -2x2 + 5x - 4 A. -2 B. 5 C. -4

OpenStudy (mertsj):

The coefficient of the x^2 term tells us that. If it is positive, the parabola opens upward. If it's negative, it opens downward. Which way does this one go?

OpenStudy (campbell_st):

the coneffiencent of x^2 determines concavity... +ve concave up, -ve concave down

OpenStudy (mertsj):

So you will pick A, right?

OpenStudy (campbell_st):

right

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