Question

What is the equation of the graphed line?
Ay=-2x

B.y=-1/2x

C.y=1/2x

D.y=2x

http://static.k12.com/calms_media/media/1503000_1503500/1503201/1/25d0a4ef26bd7133fb74b42dfee5663fdb3ba55e/MS_IMC-140516-1000011.jpg

Answer 1

@shinalcantara

Answer 2

@sidsiddhartha

Answer 3

I think its either B or C

Answer 4

taking two points of the line, say (0,0) and (-2,4) we'll get the slope using the slope formula:
\[m = \frac{ y_2 - y_1 }{ x_2-x_1 }\]
\[m = \frac{ 4-0 }{ -2-0 }\]
\[m = -2\]
from point slope form using point (-2,4)
(y-y1)=m(x-x1)
y-4 = -2(x-(-2))
y-4 = -2x -4
y = -2x -4+4
y = -2x

Answer 5

Thank you! again, I still might need help with more though so ill tag you in them

Answer 6

yw :)