- #1

1MileCrash

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## Homework Statement

Find the equation for the tangent line at (2,2)

f(x)=xy+y^3=12

## Homework Equations

## The Attempt at a Solution

I really feel like I know what I'm doing here, but the key disagrees.

My equation for the tangent slope comes out to be:

(-y)/(x+3y^2)

when solved for my (2,2), I get a slope of -1/7

Yielding an entire equation of y= -1/7x + 12/7