Answer:YYYYYYYYY
Step-by-step explanation:
The equation in y = mx+b form is y = -450x+2745
where,
x = number of hours that have passed by
y = distance to destination in miles
The y intercept is 2745 since this is the initial starting y value, aka the starting distance. Therefore b = 2745.
The slope is -450 or -450/1 since for each hour, the distance goes down by 450. You can think of it as
slope = (change in y)/(change in x)
slope = (change in distance)/(change in time)
slope = (-450 miles)/(1 hour)
slope = -450
Multiply both sides by 7 and then you get 4s-7=21. then add 7 to 21. then you have 4s=28. then divide both sides by 4 and you get s=7
Equation of a horizontal line passing through point (-3, 8) is y = 8.