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anonymous
 4 years ago
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Does the graph of this quadratic equation open upward or downward? Explain your answer.
f(x) = (x²8x3)
anonymous
 4 years ago
All Does the graph of this quadratic equation open upward or downward? Explain your answer. f(x) = (x²8x3)

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328225644925:dw ax^2+bx+c when a>0 it goes up and here it's (x^28x3)=x^2+8x+3 so a=1 which is higher than 0

radar
 4 years ago
Best ResponseYou've already chosen the best response.0f(x)=x^2 +8x + 3 Note that the coefficient of the x^2 term is a positive 1 As Tomas.A pointed out if the coefficient (a) is > 0 (positive) it opens upward.
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