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Mathematics 21 Online
OpenStudy (anonymous):

What is the equation of the line? https://static.k12.com/calms_media/media/1503500_1504000/1503770/1/1bf0d5d19875f8ba5b37c787b050508150a1633f/MS_IMC-140523-131301.jpg A. y = -3/2x B. y = -2/3x C. y = 2/3x D. y = 3/2x

OpenStudy (anonymous):

it is either a or d i m leaning to a though...

OpenStudy (anonymous):

plz put proof with ur work thx

OpenStudy (anonymous):

@Nnesha

OpenStudy (anonymous):

Answer is c.

OpenStudy (anonymous):

how i cant see that...

OpenStudy (anonymous):

the x-axis is before the y-axis

Nnesha (nnesha):

A or D lets cancel out 2 options by just knowing this if the line is increasing then you will get positive slope if the line is decreasing then slope would be negative

OpenStudy (anonymous):

hmmmm... one sec

OpenStudy (anonymous):

oh so d? because the line is increasing

Nnesha (nnesha):

slope = rise over y-intercept is a point where line intersect y-axis so how many units it's going up from the y-intercept and then right ?

Nnesha (nnesha):

why is it D why not C ?

Nnesha (nnesha):

like i said line is increasing so A B can't be the answer

OpenStudy (anonymous):

ok, let me try c

OpenStudy (anonymous):

Take any 2 points that the line is passing through. I've taken (3,2) and (0,0). Then you use the standard line equation: (y-y1)={(y2-y1)/(x2-x1)}*(x-x1)

OpenStudy (anonymous):

Here: y1=2, x1=3, y2=0, x2=0.

OpenStudy (anonymous):

the line does not intercept with c

OpenStudy (anonymous):

WAIT!!!!!

OpenStudy (anonymous):

RISE TO RUN CORRECT???

Nnesha (nnesha):

\(\color{blue}{\text{Originally Posted by}}\) @Houdini_Dragon the line does not intercept with c \(\color{blue}{\text{End of Quote}}\) with x what do you mean ?

OpenStudy (anonymous):

2 up and 3 across

OpenStudy (anonymous):

i dunno why x is there that is just part of the answer choice

OpenStudy (anonymous):

perhaps it is because of the x-axis

Nnesha (nnesha):

y=mx+B is a slope intercept where m is slope and b is y-intercept x is variable with slope that supposed to be there

OpenStudy (anonymous):

u r right it is c, because the rise is 2, and the run is 3

OpenStudy (anonymous):

ok

Nnesha (nnesha):

|dw:1444338219047:dw| so yes right

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