please show all work to help me better understand.

Let f(x) = 2x2 - 13x + 5 The slope of the tangent line to the graph of f(x) at the point (1, - 6) is The equation of the tangent line to the graph of f(x) at (1, - 6) is y - ma + b for m = and b Hint: the slope is given by the derivative at r = 1, ie. f(1 + h) - f(1) lim h+0 h