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Complete the equation of the line through (3,-1) and (4,7)

User Nkoren
by
8.2k points

2 Answers

2 votes

Answer:

y=8x-25

Explanation:

1) You find the slope by doing y2-y1/x2-x1 (so 7-(-1)/4-3) then you get the slope of 8

2) then you plug in some points using the slope (I'll use the point (3,-1)) : -1=8(3)+b

3) to find "b", you solve: -1=24+b --> b=-1-24 --> b=-25

4) then you put everything together and you get y=8x-25

User Utkarsh Pal
by
7.9k points
4 votes

Answer:

y=8x-25

Explanation:

I put my work in the picture I attached

Complete the equation of the line through (3,-1) and (4,7)-example-1
User Bhall
by
8.2k points

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