3 years ago

The points (-3, 2) and (9,r) lie on a line with slope 1/2. Find the missing coordinate r.

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

Answer:

8 = r; (9, 8)

Explanation:

-y₁ + y₂\-x₁ + x₂ = m

-2 + r\3 + 9 = ?\12

-2 + r = 6

+2 + 2

__________

r = 8

The reason why the expression has to equal 6 is because 6⁄12 simplifies to ½, and the numerator has to be a six in order to get the rate of change [slope] of ½, so there you have it.

I am joyous to assist you anytime.

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