6) Midpoint = 13
7) The length of the line = 18
Explanations:On the number line, there are two points:
X = 4, Y = 22
6) The midpoint of the line will be given by the equation:
[tex]\text{Mid point = }\frac{X\text{ + Y}}{2}[/tex][tex]\begin{gathered} \text{Mid point = }\frac{22\text{ + 4}}{2} \\ \text{Midpoint = }\frac{26}{2} \\ \text{Midpoint = 13} \end{gathered}[/tex]7) The length of the line will be calculated as:
XY = Y - X
XY = 22 - 4
XY = 18
