Recover the other end of a line segment from one endpoint and its midpoint.
| Input | What it means |
|---|---|
| x₁ | A value or coefficient in the formula above; keep the displayed position and sign. |
| y₁ | A value or coefficient in the formula above; keep the displayed position and sign. |
| x | A value or coefficient in the formula above; keep the displayed position and sign. |
| y | A value or coefficient in the formula above; keep the displayed position and sign. |
With endpoint (1,2) and midpoint (4,6), the other endpoint is (7,10).
Recover a missing segment endpoint from a known midpoint.
Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.
Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.
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