OpenStudy (anonymous):

find the equation of a tangent line y=-x^2+2x+2 at x=-4 Cant figure it out :(

3 years ago
OpenStudy (anonymous):

take the derivative, plug $$-4$$

3 years ago
OpenStudy (anonymous):

but how do i find y?

3 years ago
OpenStudy (anonymous):

because it needs to be written like this -> (y-y1)=m(x-x1)

3 years ago
OpenStudy (anonymous):

you find y by replacing x by -4

3 years ago