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24-01-2022
Mathematics

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Line k contains the points (-9, 4) and (9,-8) in the xy-coordinate plane. What are two other points that on line k?

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24-01-2022

Answer:

Depends on what x values you want to take.

Step-by-step explanation:

So, first, you got to know the equation of a line. y=mx+c

First we find m, the gradient. We find it by doing y2-y1/x2-x1/

we get 12/-18 which simplifies to 2/3. Now, this is our gradient

With this we have, y=2/9x + c. Now take a point that was given, substitute and you will get c. I took 9,-8 and got c as -14.
Now our equation is y=2/3x + (-14)/
Now we have to find two points on it. Here we can take whatever x values you want, substitute it, and get the y.

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