For equations given below, find functions of x and y you require to plot along horizontal and vertical axes of linear graph paper to create data points fall on the straight line. In every case, express how a and b are related to slope and intercept of straight line. Illustrate all work.
a.) y = v(ax-b)
b.) y = ax^3 + bx
c.) y = a - a * sin^2(x) + b * cos(x)