Answer:
y = 2x - 1
Step-by-step explanation:
When the slope is perpendicular it is the negative reciprocal. For example if a slope is perpendicular to 5 it would -1/5.
Slope: 2
y = 2x + b
To find the y - intercept plug in the coordinate for x and y, then solve for b
3 = 2(2) + b
b = -1
y = 2x - 1