Exercises 143–145 will help you prepare for the material covered in the next section. If (x1,y1) = (-3, 1) and (x2, y2) = (−2, 4), find (y2-y1)/(x2-x1)

Find the slope of the line shown below.

Find the slope of the line containing the points $\left(-1,1\right)$ and $\left(4,3\right)$.

Write an equation of a line that passes through the point $\left(3,-4\right)$ and is parallel to the line $x+2y+18=0$.

Graph a line with a slope of 0 that passes through the point $\left(3,-2\right)$.