In this question, the bus had traveled 4 parts of the distance which equal to 12 miles. If you put it into an equation it will become 4 parts = 12 miles 1 parts = 12miles/4= 3 miles
The total distance of town A to town B is 8 parts. So, the total distance in miles would be: 8 parts * 3miles/part= 24 miles
y = mx + b slope(m) = -3/8 use either of ur points...(5,2)...x = 5 and y = 2 now we sub and find b, the y int 2 = -3/8(5) + b 2 = - 15/8 + b 2 + 15/8 = b 16/8 + 15/8 = b 31/8 = b
so ur equation is : y = -3/8x + 31/8....or 3x + 8y = 31