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Question

What are the x-intercepts of the graph of y = 12x2 −5x −2?


A

1 and -1/6

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B

-1 and 1/6

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C

2/3 and -1/4

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D

-2/3 and 1/4

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Solution

The correct option is C

2/3 and -1/4


The value of x for that y = 0 is called intercept of the

0 = 12x2 -5x - 2

12x2 - 8x + 3x - 2 = 0

4x (3x -2) +1(3x - 2) = 0

x = -1/4 and 2/3


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