Question

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

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

Answer 1

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

Answer 2

first rearrange your equation to a form where the slope of the line is obvious
2x + 5y = -10
5y = -2x - 10
divide through by 5:-
y = (-2/5)x - 2

this is the form

y = mx + c where m = slope and c = intercept on the y-axis

a negative slope is this way: \

Answer 3

now examine the 4 lines and identify the one with the slope -2/5 and intercept on y-axis = -2

Answer 4

So D?

Answer 5

can you see which one it is? its a negative slope so its either b or d

Answer 6

right

Answer 7

as you can see this line passes through the point where y = -2

Answer 8

Thx :D