To describe: the error in the given graph of the quadratic inequality and correct it.
The only error is the shaded region will be inside of the parabola not the outside of the parabola.
Given information:
The given quadratic inequality is
The given graph of the quadratic inequality is
Formula used:
A quadratic function of the form
If a quadratic inequality is less than or greater than type then the outline of the parabola is a dashed line.
If a quadratic inequality is less than equal to or greater than equal to type then the outline of the parabola is a solid line.
If
If
Calculation:
First,
So, outline of the parabola is a solid line.
Now, check for
Now, check for
So, the vertex is at
Here,
The parabola is open upwards
Now, take
Which is false.
So, the parabola is not satisfied by
The shaded region will be inside and the outline of the parabola not the outside of the parabola.
Graph the correct function as shown.
The only error is the shaded region will be inside of the parabola not the outside of the parabola..
Chapter 1 Solutions
EBK ALGEBRA 2
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