SOLUTION: given the function defined by y=-7x^2+3x-8 determine whether function opens upward or downward

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Question 212978: given the function defined by y=-7x^2+3x-8
determine whether function opens upward or downward
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
downward, the high order coeefficient (-7 on the x^2 term) is negative. So it must open down.
See this URL for a plot --> http://www.wolframalpha.com/input/?i=-7x^2%2B3x-8