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1. Line Q goes through (-6, 7) and (4,-2). Write the equation of line Q.

1 Answer

4 votes

Answer:

y=-9/10x+8/5

Explanation:

(-6,7) and (4,-2)

Use rise over run to solve for the slope:

(y1-y2)/(x1-x2)

(7- -2)/(-6-4)

(7+2)/(-6-4)

9/-10

-9/10 Move negative sign to make it easier to read

Now you have y=-9/10x+b

Plug in the values from either of the two points to solve for b:

(4,-2)

-2=-9/10 (4)+b

-2=-36/10+b

-2= -18/5 +b

-2+18/5=b

-10/5 +18/5=b

8/5=b

y=-9/10x+8/5

User Aniruddh Parihar
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