Math

School is 2 miles from home along a straight road. The table shows your distance from home as you walk home at a constant rate.

Time(mins): 10-20-30
Distnce(mi)1.5-1-0.5

1)Is the relationship in the table
proportional?
2)Find your distance from school fro each time in the table
3)Write an equation representing the relationship between the distance from school and time walking.

**I hope the table makes sense, it's 10 mins for 1.5 miles, 20 mins for 1 mile, 30 mins for .5 mile.
THANK YOU!!

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  1. (1) no
    (3) starting at (10,1.5), d decreases by .5 every 10 minutes
    d = 1.5 - 0.5((t-10)/10)
    = 3/2 - (t/10 - 1)/2
    = 3/2 - t/20 + 1/2
    = 2 - t/20
    or, if you like decimals, d = 2.0 - 0.05t

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  2. why didnt you answer number 2

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  3. what does t mean

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  4. For the answer to part 2, (B) It is .5 / 1 / 1.5 / The problem states you are 2 miles from home so just subtract the dist from home on all of them

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