Equations of the tangent that pass through a point
I'm trying to determine the tangents to the curve that pass through the point
I got the first equation right, but the second one is apparently wrong (according to the book).
What I did was set the derivative equal to the slope of two points. Points I used were and which which would leave the slope to be
First equation is the tangent that passes through so . Finding the equation by setting the derivative at equal to the slope like this:
But I'm getting a different answer for the second equation:/
The book has the second equation as: