13 find the equation of the tangent of The sraigh of flx) =-2x at ( 1, - 2) The equation of the tangent line is yo ] find the given limit lim ( ~x + 7 x - 8 ) = X - 7 for the function, find the point(s) on the graph at which The tangent line has slone - I y = - 0. 0 25 x + 3x