• Sep 11th 2007, 03:59 PM
meachee
:(Hey I'm New to this so here whe go i'm in Pre Ib and i'm in Algerbra 2 honors and i need help with graphing equations using y=mx+b:(
• Sep 11th 2007, 04:06 PM
Krizalid
That's the line in principal form, where $m$ is the slope, and $b$ where the line intersects to the "y" axis.

Give problems, would be easier to help ya.

P.S.: reduce the size!
• Sep 11th 2007, 04:08 PM
Jhevon
Quote:

Originally Posted by meachee
:(Hey I'm New to this so here whe go i'm in Pre Ib and i'm in Algerbra 2 honors and i need help with graphing equations using y=mx+b:(

what's with the huge font?

to graph a line, you only need two points (many professors will make you plot several points, but this is not necessary). the easiest (and usually more efficient) points to plot are the intercepts.

in the formula y = mx + b, m is the slope and b is the y-intercept. the y-intercept lies on the y-axis. so you can put a point on the y-axis at the value b.

next we plot the x-intercept. for the x-intercept, we solve for x when y = 0

so we have 0 = mx + b, so x = -b/m. so we can plot that point on the x-axis.

finally, draw a line between the two points and you're done
• Sep 12th 2007, 05:40 PM
TyRayCooper
Hey Im In School And The Problem Is Simplify
-6(3-d)
• Sep 12th 2007, 05:43 PM
Jhevon
Quote:

Originally Posted by TyRayCooper
Hey Im In School And The Problem Is Simplify
-6(3-d)