Which line is a graph of the equation: 2x + 5y = –10?

http://static.k12.com/calms_media/media/213000_213500/213123/1/7c34fa0e2dcd286d023240417eb68498aae2b193/VHS_ALG_S1_07_L203_L303_LQ4_graphi.gif

A. line a
B. line b
C. line c
D. line d

Question

Which line is a graph of the equation: 2x + 5y = –10?


http://static.k12.com/calms_media/media/213000_213500/213123/1/7c34fa0e2dcd286d023240417eb68498aae2b193/VHS_ALG_S1_07_L203_L303_LQ4_graphi.gif


A. line a
B. line b
C. line c
D. line d

itsbribro · Answer

thats a -10

anonymous · Answer

Put the line into slope-intercept form.
So subtract 2x from both sides, then divide both sides by 5.

itsbribro · Answer

so it would be 2x+5y-2x= -10 -2x

anonymous · Answer

No. When you subtract it from the side its already on, it will cancel out and no longer be on that side.

anonymous · Answer

You should have :
$$5y=-2x-10$$

itsbribro · Answer

oh ok so i just take the 2x away on the left and then divide by 5 on both sides?

anonymous · Answer

Yes

itsbribro · Answer

okay so now that i have 5y = -2x - 10 I would divide by 5 on both sides like  $$5y \div5=-2x-10\div5$$

itsbribro · Answer

omg im so confused im sorry :(

anonymous · Answer

Not quite. It should look like this :
$$y=-\frac{ 2 }{ 5 }x-2$$

itsbribro · Answer

i think its line c :/

anonymous · Answer

it's actually D because the slope is negative

itsbribro · Answer

oh

itsbribro · Answer

thank you for you help! :)