SOLUTION: the parabola y=ax2+k passes through the points (-1,3) and (3,-13). find the values of a and k
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Question 907608: the parabola y=ax2+k passes through the points (-1,3) and (3,-13). find the values of a and k
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
the parabola passes through the points (-1,3) and (3,-13). find the values of a and k.
Equation 1:
Equation 2:
Subtract the 1st equation from the 2nd equation, the result is
, divide both sides by 8
a = -2, substitute into Equation 1 and solve for k:
-2 + k = 3
k = 5
Answers: a = -2 and k= 5
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