How to fine the equation of the curve ?

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1 Answer
May 27, 2018

Simply integrate to find the function:

#f(x) = int -2x dx = -x^2 + C#

We now can solve for #C# knowing that the graph passes through #(3, 0)#.

#0 = -3^2 + C#

#0 = -9 + C#

#C = 9#

Therefore the curve is #y = -x^2 +9#.

Hopefully this helps!