Exercises: Finding line equations

1. Insert $t$ and the coordinates of the point $P$ into the general equation of the line and solve for $m$.

2. Substitute $m$ and $t$ into the general line equation $\Rightarrow y=-x+2$

Drawing the line

Draw the given point $P(3|-1)$ in the coordinate system. Then, draw the point $S_y(0|2)$ (y-intercept $t=2)$ and connect the points $S_y$ and $P$ to form a line.