Find a general expression for the slope of a tangent line to the indicated curve. Then find the slopes for the given values of x. Sketch the curves and tangent lines. Y=6x-2x^2 ; x=1.5, x=-0.5, x=2 Mtan= The slope at x=1.5 is The slope at -0.5 is The slope at x=2 is Sketch the curve of y=6x-2x^2 and the line tangent to the curve at x=-1.5. Choose the correct graph