Answer:
see explanation
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =

with (x₁, y₁ ) = (0, - 3) and (x₂, y₂ ) = (4, 2) ← 2 points on the line
m =
=
=

The line crosses the y- axis at (0, - 3 ) ⇒ c = - 3
y =
- 3 ← equation of line