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Lady bird [3.3K]
3 years ago
11

What is the equation of a line that passes through (1,5) and (3,11)? Show work please.

Mathematics
1 answer:
jekas [21]3 years ago
3 0
First, find the gradient/slope:
Use slope formula:
m=(y2-y1)/(x2-x1)
=(11-5)/(3-1)
=6/2
=3
Then use the line equation formula:
y=mx+c
You can substitute (1,5) if you like, also must substitute the slope as well!
5=3x1+c
c=2
Then find the full equation, which gives you the answer:
y=3x+2
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