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25-01-2022
Mathematics

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A line goes through point A(9, 1), point B(19, k) and point C(7, 0). What is the value of k?

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s1780432 s1780432

26-01-2022

Answer:

6

Step-by-step explanation:

(1-0)/(9-7)

m = 1/2

y = 1/2x + b

1 = 1/2(9) + b

1 = 4.5 + b

-3.5 = b

y = 1/2x - 3.5

k = 1/2(19) - 3.5

k = 9.5 - 3.5

k = 6

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