Answer:
y = - 3x + 7
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 = - 3x - 7 ← is in slope- intercept form
with slope m = - 3
Parallel lines have equal slopes
y = - 3x + 7 ← has a slope of - 3 and is parallel to y = - 3x - 7
