SOLUTION: Give the equation of the line that contains (-9, 8) and (-9, -7)

Question 249560: Give the equation of the line that contains (-9, 8) and (-9, -7)
Answer by chosenpoint(26) (Show Source): You can put this solution on YOUR website!
Coordinate-system/249560 (2009-12-14 01:17:09): Give the equation of the line that contains (-9, 8) and (-9, -7)

This one should be fairly easy.

We know that if the x or y component is the exact same for any 2 points on a straight line, then that line must either be a horizontal or vertical line. There are no other possibilities.

In this example, we can see that both points share -9 as their x components.

Thus, the equation for this line is simply:

x=-9 which is a vertical line that intersects the point (-9,0) on the x-axis (the line shown in blue in the drawing),

and that will hold true for EVERY real value of y.

Answer 181736 by chosenpoint(17) About Me on 2009-12-14 01:26:49

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