WeBWorK Standalone Renderer

Suppose $d, m, n, q > 0$ and $a, b, c, p < 0$ . Match each pair of parametric equations with one of the lines $L1, L2, L3, L4$ in the figure below. For each, enter the appropriate name of the line (L1, L2, etc.).

I. $x = a + c t,\quad y = b + d t$ :
II. $x = m + p t,\quad y = n + q t$ :

graph of L1, extending from the 3rd quadrant through the 2nd and into the 1st; L2, extending from the 3rd quadrant through the 4th into the 1st; L3, extending from the 2nd quadrant through the 1st to the 4th; and L4 from the 2nd through the 3rd into the 4th.

You can earn partial credit on this problem.