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dp123456
dp123456 dp123456
  • 09-05-2014
  • Mathematics
Answered

Consider the quadratic equation y = –3x2 – 2x + 4.  A. Find the value of the discriminant.  B. How many real roots does the equation have?  C. Does the vertex of the graph of the equation lie above, on, or below the x-axis?  

Verified Answer :

crisforp
crisforp crisforp
  • 10-05-2014
Adiscriminant = 52;
B. 2, because 52 > 0
C. - discrminant / 4a = -52 / -12 = 6 > 0 =>  the vertex of the graph of the equation lie above the x-axis.
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