Question

5.Below is the graph for the equation 4xy – 20. How could we changethis graph to represent the solution set for the inequality 4x Sy 4 207Explain in detail what changes you would need to make

Answer 1

To graph the inequality:

1- When the inequality is ≥ or ≤ you draw the border line as a full line

2-When the inequality is < or > you draw the border line as a dotted line

3-When the inequality is < or ≤ you shadow the area below the border line

4- When the inequality is > or ≥ you shadow the area above the border line

For the given inequality:

$4x+5y<20$

The changes to make to the given graph are:

Turn the line into a dotted line

Shadow the area below the line