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What is the value of z when the straight line equation of y equals x plus z is tangent to the curve of y equals 3 -x -5x squared?
Wiki User
∙ 13y ago
-2
Drew Tremblay
Wiki User
∙ 13y agoEquations: 3-x-5x2-5x = x+z
Rearrange into a quadratic equation: 5x2+2x+(-3+z) = 0
Use the discriminant to find the value of z:-
22-4*5*(-3+z) = 0
64-20z = 0
-20z = -64
z = 3.2
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2
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Does the equation a squared plus b squared equals c squared classify as a quadratic equation?
no
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