Parametric curve? I don't know what it is but I need HELP!

Question

Find the area under the graph of y=mx+b from x=a₁ to x=a₂ and verify your answer by using plane geometry. Assume that mx+b ≥ 0 on [a₁, a₂].

Answer 1

Sam, the integral is defined to find the area between a positive function and the x-axis.

So this question is just asking you to find the integral of y from a₁ to a₂.