Plot a graph for -3≤x≤3; Y= x and Y= 3x. Measuring the slope in each case.

Plot the following graphs on the same page for: Y= x+ 4, y= 3x+2. Measure their slopes and their intercepts on the y- axis.

Write down suitable functions of P and Q which could be ploted against each other so as to obtain straight lines graphs in the following cases: (a) Q= a pn. (b) Qm= a pn. (c) Q= a no. (d) Q²-a(p²-b²)/p (e) Q= ap+b+p².