Find the general expression for the slope of a line tangent to the curve of y = 2x + 4x at the point P(x,y). Then find the slopes for x = -2 and x = 1.5. Sketch the curve and the tangent lines. What is the general expression for the slope of a line tangent to the curve of the function y = 2x + 4x at the point P(x,y)? mtan The slope for x= -2 is The slope for x = 1.5 is Sketch the curve of y = 2x + 4x and the line tangent to it at x= -2. Choose the correct graph below. . Q 2 B. Q Sketch the line tangent to the curve of y = 2x + 4x at x=1.5. Choose the correct graph below. A. . D. Q Q C. D.