Chapter 9, Problem 12STP

To determine

To find: The $y$ -co-ordinate of midpoint.

Answer to Problem 12STP

The $y$ -co-ordinate of midpoint of AB will be $3.76$ .

Explanation of Solution

Given information:

The given expression is $A\left(.8,5.32\right)andB\left(0.44,2.2\right)$ .

Calculation:

Calculate the expression.

Use the formula of co-ordinate of the midpoint $\left(x_1,y_1\right)and\left(x_2,y_2\right),\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)$ .

Substitute the value of $\left(x_1,y_1\right)=\left(.8,5.32\right)and\left(x_2,y_2\right)=\left(0.44,2.2\right)$ .

  $\begin{array}{c}\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)=\left(\frac{0.8+0.44}{2},\frac{5.32+2.2}{2}\right)\\ =\left(\frac{1.24}{2},\frac{7.52}{2}\right)\\ =\left(0.62,3.76\right)\end{array}$

Therefore the $y$ -co-ordinate of midpoint of AB will be $3.76$ .