Answer:
y = -1/5 x + 14/5
Step-by-step explanation:
Take slope of line and because it perpendicular, you flip it and change the sign.
5 ---> -1/5
Use equation of the line: y - y1 = m ( x - x1 )
y - 2 = -1/5 ( x - 4 )
y - 2 = -1/5 x + 4/5
y = -1/5 x + 14/5