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Does the quadratic function y=-2x+3x^2+5 open upward or downward? Explain

User Matthias D
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2 Answers

5 votes

Answer:

Upwards

Explanation:

The reason is this quadratic function has a positive coefficient which is 3. The reason 3 is the coefficient is that 3 is the one with the X with a square in it. if 3 would have been negative, well the answer would be the opposite.

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User Leda
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3.2k points
7 votes

Answer:

It would open upward.

Explanation:

If you see on the equation, there is a positive (+) sign on the
3x^2. If you see the positive sign on anything that is squared, and it is asking for a quadratic function, then it will always open upward. If you see a negative sign on anything that is squared, and is asking for a quadratic function, then it will open downward.

User Murali
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3.8k points