Question

which of the following lines is parallel to the graph of 5x+2y=8
a. 2x+5y=3
b. 5x+3y=6
c. -10x-4y=7
d.-10x+4y=9

Answer 1

5x+2y=8
2y=-5x+8
y=-2.5x+4

a.2x+5y=3
5y=-2x+3
y=-2/5x+3/5  so it isn't a

b.5x+3y=6
3y=-5x+6
y=-1 2/3x+2 so it isn't b

c. -10x-4y=7
-4y=10x+7
y=-2.5x-7/4 So it is c

Hope this helps :)