Answer:
1. Range: [tex]\infty < y < \infty[/tex]
2. {(1,3), (2,6),(3,9)}
Explanation:
Solving (1):
Given
[tex]y = 2x + 1[/tex]
Required: Determine the range
For every value of x, there is a corresponding y value.
This implies that, the domain is:
[tex]\infty < x < \infty[/tex]
And the corresponding range is:
[tex]\infty < y < \infty[/tex]
Solving (2): Determine which of the options is a relation.
Option (c) is a relation because it has domain (x) and range (y) and can be represented as:
[tex](x,y)=\{(1,3), (2,6),(3,9)\}[/tex]
