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vodka [1.7K]
3 years ago
5

Find an equation for the line passing through the points (-3,1) and (9,7)

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0
The you find this is by first finding the slope. You do this by finding the difference between both x values and then both y values. You get 12(x), 6(y) then write it as a fraction. it is 12/6 which simplifies to 2. 2 is our slope. then you write it out in slope intercept form (y=mx+b) and plug in your numbers. pick one set of original points an put them in to x and y. now you just solve for b. this gives you -9 as b. you put it together to get
y=2x-9
hope this helps!!!! :)
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