using two sets of points....(4,-9), (-3,2)
2007-03-12 06:46:09 · 4 answers · asked by lil_mama_313 2 in Education & Reference ➔ Homework Help
use the slope formula
y2-y1/x2-x1
[2 - (-9)]/ [ -3 - 4] = -11/7
and that's your slope.
now take slope intercept form:
y = mx + b
and plug in what you know
2 = (-11/7)(-3) + b
2 = 33/7 + b
14/7 = 33/7 + b
-19/7 = b
and now you've got your equation
y = -11/7 -19/7
2007-03-12 06:52:01 · answer #1 · answered by crzywriter 5 · 0⤊ 0⤋
y= mx + b
You'll need to first figure out (b) the Y intercept- where the graph line intercepts the Y axis.
Then you'll need to figure the slope (m) of the two sets of points.
Then you can just plug the numbers in above.
2007-03-12 06:52:57 · answer #2 · answered by Behaviorist 6 · 0⤊ 0⤋
4 is X1 -9 is Y1 -3 is X2 2 is Y2...the formula is y2 -y1 / x2-x1
2007-03-12 06:50:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
y = mx + b
good luck this should help
2007-03-12 06:56:48 · answer #4 · answered by josh 1 · 0⤊ 0⤋