1. The problem statement, all variables and given/known data find the equation for the tangent line. 1. (e^x)(cos x) where x=0 2. Relevant equations plugged 0 into the equation, (e^0)(cos 0) and got 1 for the y-coordinate. so I got the points(0,1). For the slope, I derived the equation into -(e^x)(sin x). then i plugged 0 in and got 0 for the slope. I used point-slope form, y-1=0(x-0) 3. The attempt at a solution y-1=0(x-0) or y=1. but the answer says x-y+1=0 I believe the slope was suppose to be 1 and I got 0, what is the right way to get the slope?