SOLUTION: without graphing, tell how many x-intercepts the function y= -4x^2 - 4x - 6 has
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Question 979195: without graphing, tell how many x-intercepts the function y= -4x^2 - 4x - 6 has
Answer by anand429(138) (Show Source): You can put this solution on YOUR website!
Equate the function to 0 and solve for x
At all those points, function intercepts x-axis
y= -4x^2 - 4x - 6 = 0
=> 4x^2 + 4x + 6 = 0
=> 2x^2 + 2x + 3 = 0
=> This equation has no real solution since discriminant<0
Hence no x-intercept
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