Question

HElllp
Which is the equation of the line?



A.
x – 2y = 6

B.
2x – y = 3

C.
2x + y = –3

D.
x + 2y = –6
http://static.k12.com/calms_media/media/1299500_1300000/1299536/1/ec6e9876c2c49050325cab78f99a4e46e94b1d88/143685.jpg

Answer 1

will give medal and fan

Answer 2

@mathivh

Answer 3

Take two points of the slope (which you can see on the graph), say (x1,y1)=(6,0) and (x2,y2)=(8,1).
You can get the slope (call this m) by using \[m=\frac{ y2-y1 }{ x2-x1 }\], which stands for the change in y-direction over the change in x-direction. Plug in the values of the chosen points and you should get:\[m=1/2\]

The equation for a straight line is: y- y1 = m(x-x1). Again fill in the values and you get:\[y-0=\frac{ 1 }{ 2 }(x-6)\]. By simplifying you get:\[x-2y=6\], which corresponds to answer (A).