We're supposed to write an equation for the line. So, like, for question #9 on the sheet, we pulled the points (4, 4) and (2,0 ) off the line. Then we wrote out our y=mx+b equation. And to figure out m, we did delta Y over delta X, and got +2. So now the equation was y=2x+b. And to get b, we did 0=2 multiplied by 2 + b, which is 0= 4 +b, so b= -4. So then our equation was y=2x-4. So if my two points are (-2, 5) and (2, -3) how would I do this equation?
2007-09-23
12:03:20
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2 answers
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asked by
"Spencer"
3