The x-axis is the horizontal axis; the y-axis is the vertical axis. The coordinates of a point are written as (x,y){\displaystyle (x,y)}. For example, a line segment might have an endpoint at (2,1){\displaystyle (2,1)} and another at (6,4){\displaystyle (6,4)}.
For example, for points (2,1){\displaystyle (2,1)} and (6,4){\displaystyle (6,4)}, your formula would look like this: d=(6−2)2+(4−1)2{\displaystyle d={\sqrt {(6-2)^{2}+(4-1)^{2}}}}
For example:d=(6−2)2+(4−1)2{\displaystyle d={\sqrt {(6-2)^{2}+(4-1)^{2}}}}d=(4)2+(3)2{\displaystyle d={\sqrt {(4)^{2}+(3)^{2}}}}
For example:d=(4)2+(3)2{\displaystyle d={\sqrt {(4)^{2}+(3)^{2}}}}d=16+9{\displaystyle d={\sqrt {16+9}}}
For example:d=16+9{\displaystyle d={\sqrt {16+9}}}d=25{\displaystyle d={\sqrt {25}}}
Since you are finding a square root, you may have to round your answer. Since you are working on a coordinate plane, your answer will be in generic “units,” not in centimeters, meters, or another metric unit. For example:d=25{\displaystyle d={\sqrt {25}}}d=5{\displaystyle d=5} units
