Can someone me with this? i'd greatly appreciate it! serious answers only !

First find the slope:
The slopes of perpendicular lines must multiply to -1.
-9m = -1   > m = 1/9

Next, use point-slope form:
y - y1 = m(x-x1) ,   where given point (0,5) is (x1,y1)
y - 5 = (1/9)(x - 0)

Finally, solve for y to put it in slope-intercept form:
y = (1/9)x + 5