Step-by-step explanation:
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You do not have enough information to solve the problem:
The charge was $6.50 without the tip. You need to know the rate that the taxicab charges in order to solve this problem.
For example if the taxicab charged $1.30 per mile then the answer would be $6.50/$1.30 per mile = 5 miles
-8 + 4 = 2u
-4/2 = 2u/2
-2 = u
The slope is negative because the first y-value is 3 and then the second y-value is -2 which would make the slope negative.
