I am asked to find the equation of a line with a slope of -1 that is tangent to the curve
I know I am doing something wrong here, but I just can't figure out what.
first, I have the equation for the slope, y=-1x+k
next, I set the y-values to equal eachother
now, here's where I think I begin to mess this up. I am trying to rearrange this into a quadratic equation.
a=-1 b=(1+k) c=(-k-1)
Then I use
now I'm stuck and don't know where to go from here.