2006-10-20 03:12:07 · 5 answers · asked by skemper10 1 in Education & Reference ➔ Homework Help
This question is vauge--please be more specific.
2006-10-20 03:18:29 · answer #1 · answered by wayfaroutthere 7 · 0⤊ 0⤋
That all depends on what you mean by a diagonal line. Any line could be a diagonal; it depends on the positioning of the polygon of which the line is a diagonal. In common understanding, however, I think most people think of a diagonal line as being neither horizontal or vertical. If this what you 're talking about, that means the diagonal line will have a slope greater than 0. Which means the equation for such a line will be in the form y = mx + b, where m is the slope of the line, and "b" is where the line crosses the y axis. "m" can have any value except zero, and "b" can have any value.
2006-10-20 10:23:01 · answer #2 · answered by Marcella S 5 · 0⤊ 0⤋
Everyone else has answered this quite correctly. If by diagonal you mean going up through the origin at a 45 degree angle, that specific line has the equation y = x. Its mirror image (going down at a 45 degree angle) would be y = -x
2006-10-20 11:27:16 · answer #3 · answered by dmb 5 · 0⤊ 0⤋
Equation of a straight line (in slope form equation) is
y=mx+b
m is the slope of the line
b is the Y-Intercept
Another form (Two point form equation of a line is):
y2-y1=m(x2-x1)
where (x1,y1) and (x2,y2) are the two point which the line is joining.
2006-10-20 10:21:52 · answer #4 · answered by hardcode121 2 · 0⤊ 0⤋
y=mx+b
m being the gradient of the line (rise over run)
b being the y intercept
2006-10-20 10:19:15 · answer #5 · answered by nikki 2 · 0⤊ 0⤋