Here's the question you clicked on:
anc36
Find an equation of the vertical line that passes through (-3,-1)
Equations of.... Horizontal lines: y = (y-coordinate) Vertical lines: x = (x-coordinate)
(x, y) (-3, -1) x coordinate is -3 y coordinate is -1
yeah but it has to be in like y=mx+b form
Now put the vertical line...|dw:1355250459684:dw| The line is crossing the x-axis at -3. That is the equation of the vertical line. x = -3 Equations for horizontal and vertical lines are written a bit differently than y = mx + b.
oh yes! you're right. thank you