Answer:
1: y=-2x+5
Explanation:
When two lines are parallel, the slopes are equivalent.
First, you have to turn 2x+y=7 into standard form.
2x+y=7
y=-2x+7
The slope is -2 so then you find an answer choice with -2 as the slope.
Turn all the answers into standard form first:
2: x+2y=4
2y=-x+4
y=-1/2x+4 Not choice 2 since the slope is -1/2.
3: y-2x=2
y=2x+2 Not choice 3 because the slope is positive 2.
Therefore, choice 1 is parallel to equation 2x+y=7.