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PB¯¯¯¯¯
is a line segment on a number line. It has endpoints at −2
and 12. What is the coordinate of its midpoint?

1 answer

To find the coordinate of the midpoint of line segment PB¯¯¯¯¯, we can use the midpoint formula.

The midpoint formula states that the x-coordinate of the midpoint is the average of the x-coordinates of the two endpoints, and the y-coordinate of the midpoint is the average of the y-coordinates of the two endpoints.

In this case, the x-coordinates of the endpoints are -2 and 12. To find the average, we add the two x-coordinates together and divide by 2:

(-2 + 12) / 2 = 10 / 2 = 5

Therefore, the x-coordinate of the midpoint is 5.

Since PB¯¯¯¯¯ is on a number line, there is no y-coordinate. The coordinate of the midpoint is simply 5.