Can you help me solve this algebra problem

Imagine you want to add a sprinkler system and the location of one section of the sprinkler line can be described by the equation.

y = -2/5x - 3

x=? y=-5 (x,y)=?

x=-3 y=? (x,y)=?

x=? y=-2 (x,y)=?

x=4 y=? (x,y)=?

x=-5 y=? (x,y)=?

y = -2/5x - 3

x=? y=-5

-5 = -2/5 x - 3

-2 = -2/5 x

x = 5

(x,y)= (5, -5)
=========================
x=-3 y=?

y = -2/5 (-3) - 3 = 6/5 - 3 = -9/5

(x,y)= (-3, -9/5)
=========================
x=? y=-2

-2 = -2/5 x - 3

1 = -2/5 x

x = -5/2

(x,y)= (-5/2, -2)
=========================
x=4 y=?

y = -2/5 (4) - 3 = -8/5 - 3 = -23/5

(x,y)= (4, -23/5)
=========================
x=-5 y=?

y = -2/5 (-5) - 3 = 2 - 3 = -1

(x,y)= (-5. -1)