Answer:
y = - 2x - 300
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 2x + 3 ← is in slope- intercept form
with slope m = - 2
Parallel lines have equal slopes, then
y = - 2x + c ← is the partial equation
To find c substitute (- 100, - 100 ) into the partial equation
- 100 = 200 + c ⇒ c = - 100 - 200 = - 300
y = - 2x - 300 ← equation of parallel line