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6th Edition

Stewart + 5 others

Publisher: Cengage Learning

ISBN: 9780840068071

Chapter 1.9, Problem 20E

To determine

**To graph**: The quadratic equation

Expert Solution

**Given information**:

The quadratic equation

**Graph**:

The graph of the quadratic equation

Consider the quadratic equation,

Now put the values of

Rewrite the equation as numerator and denominator by

Logic:

Minimum value:

Max

The value of

Now substitute the value of

Now put the value of

Substitute the value

Substitute the value

Substitute the value

Substitute the value

Now the value of

Substitute the value

Observed that when the value of

When the value of

Steps to plot the graph of the equation

Step 1: Press

Step 2: Use the down arrow key to reach

Step 3: Press

Step 4: Press

Step 5: Enter the function

Step 6: Press

For better view of graph.

Step 8: Press

The result obtained on the screen is provided below,

**Interpretation**:

The equation of the function

The

At

Recall that the graphical approach to solve the equation simultaneously.

Therefore, in the equation,

Therefore, the equation