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Mathematics 23 Online
OpenStudy (anonymous):

ANSWER IN 5 MINUTES FOR FAN + MEDAL! Which of the lines graphed in the diagram represents the equation x + 3y = 3? A. line a B. line b C. line c D. line d http://static.k12.com/calms_media/media/1312500_1313000/1312637/2/7a5ddeb604f01836816af3115d4d1d2ece07aa78/HS_AL1G2_S1_07_07_ART1.jpg I JUST NEED HELP WITH GRAPHS. :P @iGreen

OpenStudy (anonymous):

probably easiest to find the x and y intercepts

OpenStudy (anonymous):

sorry im no help but everybody replying to yous a guy i thought that was funny

OpenStudy (anonymous):

\[x + 3y = 3\] to find the \(x\) intercept, put \(y=0\) andsolve \[x+0=3\] or just \(x=3\) to it crosses the \(x\) axis at \((3,0)\)

OpenStudy (anonymous):

Okay, SO how would I find that @chefducky

OpenStudy (igreen):

Okay, rearrange it in the form of y = mx + b. x + 3y = 3 Subtract x to both sides: 3y = -x + 3 Divide 3 to all terms: y = -1/3x + 1 Okay, so what's the y-intercept? @im.celibate

OpenStudy (dmndlife24):

Definetly line A...y int. 1 and slope -1/3

OpenStudy (anonymous):

I think line a not positive

OpenStudy (anonymous):

similarly to find the y intercept put \(x=0\) and solve \(0+3y=3\) or \(y=1\)

OpenStudy (anonymous):

@igreen am I correct

OpenStudy (igreen):

Well according to what satellite gave you and the y-intercept of -1, the answer is A. Because line A crosses through (0, -1) and (3, 0).

OpenStudy (dmndlife24):

Think about it...the slope is -1/3 so the line goes down (down 1 and to the right 3)

OpenStudy (anonymous):

Thank you guys. @iGreen @lloio

OpenStudy (igreen):

Yes @lloio you're correct.

OpenStudy (anonymous):

so im correct?

OpenStudy (anonymous):

i dont know im not smart ask one of the other guys

OpenStudy (anonymous):

find the one with the x intercept \((3,0)\) and y intercept \((0,1)\)

OpenStudy (anonymous):

Oh and @satellite73

OpenStudy (anonymous):

your welcome

OpenStudy (triciaal):

@SATELLITE73 IS CORRECT SO A

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