A linear sequence is generated by the formula `T = 35 − 5n`, where `T` is the value in the sequence and `n` is the term number.

The graph of `T` versus `n` is plotted, shown by the red line on the diagram.

Another sequence is generated by the formula `T = pn + q`, given by the blue line.

Find the value of `p` and the value of `q`.