Answer:
y = 2x + 7 and y = 2x - 7
Step-by-step explanation:
• Parallel lines have equal slopes
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 2x + 7 ← is in slope- intercept form
with slope m = 2
y = 2x - 7 ← is in slope- intercept form
with slope m = 2
Thus y = 2x + 7 and y = 2x - 7 are parallel lines