y = - 3x - 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b ( m is the slope and b the y- intercept )
Calculate m using the slope formula
m = ![\frac{y_{2}-y_{1} }{x_{2}-x_{1} }](/tpl/images/1098/9668/287b9.png)
with (xβ, yβ ) = (- 2, 4) and (xβ, yβ ) = (0, - 2) β 2 points on the line
m =
=
= - 3
The line crosses the y- axis at (0, - 2 ) β b = - 2
y = - 3x - 2 β equation of line