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the graph of g(x)=ax^2 opens upward. Which of the following could be the value of a? Select all that apply.
A. -3
B. -0.6
C. 0.5
D. 2

Sagot :

Answer: Choices C and D

Explanation:

Positive values of 'a' will make the parabola open upward.

Think "positive" as in "happy smile" to help remember this. In contrast, if 'a' is negative, then it is angry or sad to make a frown.

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