joonkimdds Senior Member 10+ Year Member 15+ Year Member Sep 27, 2005 #1 Advertisement - Members don't see this ad do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course.
Advertisement - Members don't see this ad do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course.
tinman831 ¯\_(ツ)_/¯ Staff member Administrator Volunteer Staff Lifetime Donor Verified Member Dentist Verified Expert 20+ Year Member Gold Donor Sep 27, 2005 #2 joonkimdds said: do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course. Click to expand... this is to set up an equation of a line when all you know is one point (x1,y1) on the line and the slope of the line (m). Upvote 0 Downvote
joonkimdds said: do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course. Click to expand... this is to set up an equation of a line when all you know is one point (x1,y1) on the line and the slope of the line (m).
Pelotari Pelotari 15+ Year Member Sep 28, 2005 #3 joonkimdds said: do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course. Click to expand... This is the equation of a line, where (x1, y1) is any known point on that line. Good luck! Upvote 0 Downvote
joonkimdds said: do u guys know when this formula is used? Y-Y1 = M(X-X1) M= slope I think this was a geometry course. Click to expand... This is the equation of a line, where (x1, y1) is any known point on that line. Good luck!
Pelotari Pelotari 15+ Year Member Sep 28, 2005 #4 Pelotari said: This is the equation of a line, where (x1, y1) is any known point on that line. Good luck! Click to expand... I forgot to say that, in addition to (x1, y1) being known, M (slope) is also known. Just FYI, to draw a line (or find the equation of a line) you need either: a) two points, or b) a point and a slope. The equation you asked about is for (b). Upvote 0 Downvote
Pelotari said: This is the equation of a line, where (x1, y1) is any known point on that line. Good luck! Click to expand... I forgot to say that, in addition to (x1, y1) being known, M (slope) is also known. Just FYI, to draw a line (or find the equation of a line) you need either: a) two points, or b) a point and a slope. The equation you asked about is for (b).