Answer:
y =
x
Explanation:
The equation of a line passing through the origin is
y = mx ( m is the slope )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (600, 200) and (x₂, y₂ ) = (0, 0) ← 2 points on the line
m =
=
=
, then
y =
x ← equation of line