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Solve the equation for y in terms of x, and replace y function notation f(x). Then find f(3).
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Solve the equation for y in terms of x, and replace y function notation f(x). Then find f(3).

Solve the equation for y in terms of x, and replace y function notation f(x). Then-example-1
User PutsandCalls
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So isolate the y term by moving the x term (5x^2) over by subtracting it. You'll get y= 1-5x^2

f(3) = 1-5(3)^2 = -44
User Christopher Gertz
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