Show that (c) is implied by equation of lesson 4 when m>0

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Which of the following is correct interpretation of the expression -4+13

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis