a) find the slope m of the tangent to the curve y=9+4x-2x b) fine equations of the tangent lines at the points (1,11) and (2,9) y(x)= ___ (at the point(1,11)) y(x)= ____ (at the point (2,9)) c) graph the curve and both tangents on a common screen

(a) Find the slope m of the tangent to the curve y = 9 + 4x- - 2x at the point where x = a. m = (b) Find equations of the tangent lines at the points (1, 11) and (2, 9). Y ( x ) = (at the point (1, 11)) Y ( x ) = at the point (2, 9)) (c) Graph the curve and both tangents on a common screen