6. Domain and Range
Domain refers to the set of possible input values, the domain of
a graph consists of all the input values shown on the x-axis. The range is
the set of possible output values, which are shown on the y-axis.
7.
8. Example 3. Domain : all real numbers
Range: all real numbers
Example 4. Domain: x ≥ 0
Range: all real numbers
9. Example 4. Domain: x ≥ 0
Range: y ≥ 0
Example 5. Domain: all real numbers except x = 2
Range: all real numbers except y = 0
10. Example 5. Domain: -3 ≥ x < 3
Range: -4 ≤ y ≤ -2
Example 6. Domain: 1 ≥ x > -3
Range: -4 ≤ y < -3