Stupidity help: Sorry I am stupid, but I need some help with some math problems. - Help.com

y=mx+b

y=mx+b is slope-intercept form, where m is the slope and b is the y-intercept. standard form is Ax + By = C, i think, and I think there are some rules with that though with what A can’t be. Haha little rusty on this stuff.

slope is “rise over run.” take two points on the line. How high (or low) does the line go between those points? how far to the right does is go between those two points. Divide the change in y, the “rise,” by the change in x, the “run.” Positive slopes go up from left to right, negative slopes go down from left to right. Does that help a little?

Ha okay well i’m often not good at explaining things in PERSON, so certainly not online. Good luck though, mah friend.

to get slope do this: subtract the first Y coordinate from the second Y coordinate. Then do the same with the X’s. Now you divide what you got from the Y’s over the X’s and that’s your slope.

(Y2-Y1)/(X2-X1)

Do this help?
Slope of a Line

-Slope of any nonvertical straight line: m = y2-y1/x2-x1

-Slop- intercept form of a line - slope m, y intercept (0,b): y = mx+b
-Positive slope: lines goes upward to the right
-Negative slope: line goes downward to the right
-Zero slope: horizontal line
-Undefined slop: vertical line
-Parallel lines: equal slopes (different y-intercepts)
-Perpendicular lines: slopes whose product is -1; m1m2

Do you have to graph them too?