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lily43
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What is the equation of the lne that passes through points (5,4) and (2,0)?
 one year ago
 one year ago
lily43 Group Title
What is the equation of the lne that passes through points (5,4) and (2,0)?
 one year ago
 one year ago

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akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
rise/run
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
first find slope
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
then use y=mx+b
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
subsitute slope
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
and then find y intercept
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
Call point (5, 4) = (x1, y1), and call point (2, 0) = (x2, y2) Slope = m = (y2  y1)/(x2  x1) The equation of the line is: y  y1 = m(x  x1)
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
he has point slope form
 one year ago

akhaliq99 Group TitleBest ResponseYou've already chosen the best response.0
both can be used though
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
ok. thank u. :)
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
can u check if im doing it right because i feel like i messed up somewhere?
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
Sure. Show what you did.
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
i found the slope using m= Y2Y1/X2X1. i got 4/7
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
Correct, m = 4/7
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
then i plugged it in y=mx+b. so now i have y=4/7x+b.
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
i plugged in point (5,4) sonow i have 4=4/7x5+b
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
then i got 4=20/7+b.thats were im not sure if im right.
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
dw:1359950617065:dw Correct
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
so if i keep solving it the equation would be y=4/7x+1 1/7
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
dw:1359950765775:dw
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
dw:1359950864531:dw
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
i got 8/7 to but turned it into 1 and 1/7
 one year ago

mathstudent55 Group TitleBest ResponseYou've already chosen the best response.0
You can leave it as 8/7. Your solution is also correct, but it's not usually left with a mixed numeral.
 one year ago

lily43 Group TitleBest ResponseYou've already chosen the best response.0
ok. thank u
 one year ago
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