Answer:
Step-by-step explanation:
y = mx + c
Here, m is the slope & c is the y-intercept
y = -3x - 1
Slope = -3
y intercept = -1
1,320 seconds or 22 minutes to walk 1 mile
5280 feet (1 mile) ÷ 4 feet per second = 1,320 seconds or 22 minutes