Answer:
the slope is b: -1/2
rise/run is an easy way to do it. Count the number of x-units between points and the number of y-units. in this case its 6 x-units and 3 y-units. y is rise and x is run, so it'll be 3/6 or 1/2 and it's negative because it's decreasing left to right.
1. 61/100
2. 3 43/100
3. 9/1000
4. 4 7/10
5. 1 1/2
6. 13/100
7. 5 1/500
8. 21/1000
i) 4
ii) -216
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x=50
Step-by-step explanation: