2007-05-20 08:26:40 · 4 answers · asked by lindasalicea 1 in Science & Mathematics ➔ Mathematics
You need to find two values in order to write the equation of a line, the slope and the y-intercept.
To calculate the slope, find the difference between the two y-coordinates and divide this by the difference between the two x-coordinates. Here this is (-3-10)/(3-3) = -13/0. Note that you end up dividing by 0 here. This tells you that the slope is undefined and you are writing the equation for a vertical line. Thus, there is no y-intercept (unless this is the y-axis itself or x =0)...
Note that for both of your points, x = 3. Because this is a vertical line, the x-coordinate will never change as long as you stay on it. For all points on this line, x = 3 and this is the equation for the line... X = 3.
2007-05-20 08:34:07 · answer #1 · answered by Anonymous · 0⤊ 0⤋
x = 3
2007-05-20 17:36:55 · answer #2 · answered by Como 7 · 0⤊ 0⤋
x = 3
2007-05-20 15:30:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Both points have the same x-coordinate, meaning it's a vertical line. The equation is simply x = 3.
2007-05-20 15:30:53 · answer #4 · answered by Louise 5 · 0⤊ 0⤋