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What is the equation of a line through (-1 4) and (1 -2)

2 Answers

9 votes
it should be this anwser m=−1
User Bay
by
4.2k points
7 votes

Answer: y=-3x+1

Explanation:

1. Use the formula
(y2-y1)/(x2-x1)

2. Subsitute:


(4-(-2))/(-1-1) =>
(6)/(-2)

3. Solve for m in the equation y=mx+b:

m=-3(from step above)

4. y+2=-3(x-1)

=> y+2=-3x+3 => y=-3x-1

Have a nice day! :D

User Sonaryr
by
4.9k points