SOLUTION: Find value of c so that the point (4,2) lies on the graph of the function f(x)=cx^2+3x-4

Algebra ->  Expressions-with-variables -> SOLUTION: Find value of c so that the point (4,2) lies on the graph of the function f(x)=cx^2+3x-4      Log On


   

Question 211624: Find value of c so that the point (4,2) lies on the graph of the function f(x)=cx^2+3x-4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find value of c so that the point (4,2) lies on the graph of the function f(x)=cx^2+3x-4
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Substitute those values and solve for "c":
2 = c(4)^2 + 3*4 - 4
16c + 12 - 6 = 0
16c = -6
c = -3/8
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Cheers,
Stan H.