Use a Graphing Calculator to Solve the Nonlinear System

question 208

Multiple Choice

Use a graphing calculator to solve the nonlinear system. Give x- and y-coordinates to the nearest hundredth.
-The sum of the squares of the digits of a positive two-digit number is 13 , and the units digit is 1 more than the tens digit. Find the number.

• A) 34
• B) 23
• C) 32
• D) 43

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values are from the mean.

Inspiratory Reserve Volume (IRV)

The additional amount of air that can be inhaled after a normal inhalation, increasing lung volume beyond the tidal volume.

Expiratory Reserve Volume (ERV)

The additional amount of air that can be forcibly exhaled after a normal exhalation.

Functional Residual Capacity (FRC)

The volume of air remaining in the lungs after a normal, passive exhalation, critical for gas exchange between breaths.