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How many times will the graph of y=3x^2-10 intersect the x-axis?

A. 0
B. 1
C. 2
D. 3

2 answers

3 x^2 - 10 = 0
x^2 = 10/3
x = + sqrt (10/3) or x = - sqrt (10/3)

the discriminant is positive, so two roots
and only pots a question once, please ...

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