Find the distance between points on the coordinate line: a) C (-2) and D (4) b) E (-6.5) and F (-3.5).

On the coordinate line, numbers are arranged in ascending order from left to right. The number to the right is greater than the number to the left of the line.

Finding the distance between points on a coordinate line means finding the length of a segment with a beginning and an end at these points. The point with the smaller coordinate is the beginning of the segment, the point with the larger one is its end. To calculate the length of a segment by the coordinates of its ends, you need to subtract the coordinate of the beginning from the coordinates of its end.

a) Given: C (-2) and D (4).

CD = 4 – (-2) = 6.

b) Given: E (-6.5) and F (-3.5).

EF = -3.5 – (-6.5) = 3.



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