Answer:
a. y = 2x + 5
Step-by-step explanation:
f two lines are parallel to each other, they have the same slope.
The first line is y = 2x + 1. Its slope is 2.
A line parallel to this one will also have a slope of 2.
a. y = 2x + 5
b. y = 4(x + 1)
c. y = (-1/3)x + 4
d. y = 3x + 7
Therefore, your answer is a. y = 2x + 5.
Hope this helps!