Find the equation of the line that contains the points (-5,3) and (-4,1)
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Solve |
Step |
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First find the slope using the slope formula | |
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using the points (-5,3) and (-4,1) | |
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y - y1 = m(x – x1) |
Now use point slope form | |
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y – 3 = -2(x – (-5)) |
Use either point (-5, 3) | |
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y – 3 = -2(x + 5) |
Simplify | |
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y – 3 = -2x – 10 |
Get x and y on the same side | |
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2x+ y = -7 |
Done | |
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Check |
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You can check each point |
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(-5, 3) |
(-4,
1) |
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2(-5) + 3 = -7 |
2(-4) + 1 = -7 |
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-10 + 3 = -7 |
-8 + 1 = -7 |
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-7 = -7 |
-7 = -7 |
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