Answer
y=3x
Work Step by Step
Parallel lines have the same slope so the two equations would have the same slope(3). Use the point(1,3) and the slope and plug them into y=mx+b:
y=mx+b
3=3(1)+b -distribute-
3=3+b -subtract 3 from both sides-
0=b
The y-intercept is 0 and the slope is 3 so y=3x.
