(m^2-m-4)+(m-5) a)m^2-2m+9 b)m^2+2m-9 c)m^2-2m-9 d)m^2-9

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step-by-step explanation:

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.