The midpoint between the points (5, 9) and (12, 18) is (8.5, 13.5)
The midpoint between the points (-3, 3) and (-15, -7) is (-9, -2)
The midpoint(a, b) between the points (x₁, y₁) and (x₂, y₂) is given as:
[tex]a = \frac{x_1+x_2}{2} \\b = \frac{y_1+y_2}{2}[/tex]
For the points (5, 9) and (12, 18)
x₁ = 5, y₁ = 9, x₂ = 12, y₂ = 18
The midpoints can be calculated by substituting these values into the formulae
[tex]a = \frac{5+12}{2} \\a = \frac{17}{2} \\a = 8.5[/tex]
[tex]b = \frac{9+18}{2} \\b = \frac{27}{2} \\b = 13.5[/tex]
The midpoint between the points (5, 9) and (12, 18) is (8.5, 13.5)
For the points (-3, 3) and (-15, -7)
x₁ = -3, y₁ = 3, x₂ = -15, y₂ = -7
The midpoints can be calculated by substituting these values into the formulae
[tex]a = \frac{-3+(-15)}{2} \\a = \frac{-18}{2} \\a = -9[/tex]
[tex]b = \frac{3+(-7)}{2} \\b = \frac{-4}{2} \\b = -2[/tex]
The midpoint between the points (-3, 3) and (-15, -7) is (-9, -2)
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