Question

Is it done right here?

Answer 1

The formula of a slope:

`m=(y_2-y_1)/(x_2-x_1)`

7. (5, 3), (10, 8)

`m=(8-3)/(10-5)=(5)/(5)=1`

8. (-5, 14), (-1, 2)

`m=(2-14)/(-1-(-5))=(-12)/(4)=-3`

9. (-5, 6), (8, 6)

`m=(6-6)/(8-(-5))=(0)/(13)=0`

10. (-4, -17), (-4, -3)

`m=(-3-(-17))/(-4-(-4))=(14)/(0)\ !!!!`

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11. (12, -7), (2, -2)

`m=(-2-(-7))/(2-12)=(5)/(-10)=-(1)/(2)=-0.5`

12. (-3, -10), (-1, -1)

`m=(-1-(-10))/(-1-(-3))=(9)/(2)=4.5`