Chapter 12.3, Problem 5MRE

To determine

To calculate: The solution set for open sentence $\sqrt{x}=9$ and graph it.

Answer to Problem 5MRE

The solution set is $x=81$ . The graph is provided below,

Explanation of Solution

Given information:

The open sentence $\sqrt{x}=9$ .

Calculation:

Consider the open sentence $\sqrt{x}=9$ .

Square both the sides,

  $\begin{array}{c}{\left(\sqrt{x}\right)}^2=9^2\\ x=81\end{array}$

The solution set is the single point 81 on real number line.

On the real number mark the point $x=81$ and darken the point.

Thus, the solution set is $x=81$ .