Question

find the midpoint m of \overline{cd}.
c m d
-47 85
m =

Explanation:

Step1: Use mid - point formula

The mid - point formula for two numbers \(a\) and \(b\) on a number line is \(M=\frac{a + b}{2}\). Here \(a=-47\) and \(b = 85\).
So, \(M=\frac{-47+85}{2}\).

Step2: Calculate the sum in the numerator

\(-47 + 85=85-47 = 38\).
So the expression becomes \(M=\frac{38}{2}\).

Step3: Divide

\(\frac{38}{2}=19\).

Answer:

\(19\)