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Mathematics 17 Online
OpenStudy (sparklestaraa):

Choose the equation that represents the graph below

OpenStudy (sparklestaraa):

OpenStudy (sparklestaraa):

I think its A but i'm not for sure

OpenStudy (sparklestaraa):

@DanJS

OpenStudy (sparklestaraa):

@SolomonZelman

OpenStudy (sparklestaraa):

@confluxepic

OpenStudy (acxbox22):

what do we already know from the graph: we know the slope is negative since the line is sloping down and that the y intercept is (0,6) that leaves only two answer choices do you know how to find slope?

OpenStudy (sparklestaraa):

y=mx+b (0,6)=

OpenStudy (acxbox22):

(0,6)= y-intercept the slope from the graph we can find by using rise/run we can see it goes down 2 and right 3 so that is -2/3 <<<< this is the slope what is the answer now?

OpenStudy (sparklestaraa):

oh isn't it like (0.-6)=-2/3x+b?

OpenStudy (acxbox22):

no in the equation y=mx+b b is the y value of the y intercept

OpenStudy (sparklestaraa):

how can you find the y value of a y intercept?

OpenStudy (acxbox22):

we already know the y intercept is (0,6) 6 is the y vale of the y intercept so b=6

OpenStudy (sparklestaraa):

ohh so (0,6)=-2/3x+6 ?

OpenStudy (acxbox22):

no the equation is simply y=-2/3x+6 remember (0,6) does not equal y so you dont put it there you just leave the y there to get your equation

OpenStudy (sparklestaraa):

ohhh thanks :D i understand that now :D

OpenStudy (sparklestaraa):

Can you help with another i'll make a new question so u get full credit with medals :D

OpenStudy (acxbox22):

your welcome ;)

OpenStudy (acxbox22):

i doesnt matter about medals but open a new question so everyone can see your question again

OpenStudy (sparklestaraa):

ok :D

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