Question

. Given the rule y = 2x +1. Find the rang

A. 1,3 and 5 B. 0,1 and 2
Which of the following is a relation?
A. {1,2,3,4}
B. 7 + 2 = 9
C. {(1,3), (2,6),(3,9)}
D. You and me​

Answer 1

1. Range:
`\infty < y < \infty`

2. {(1,3), (2,6),(3,9)}

Step-by-step explanation:

Solving (1):

Given

`y = 2x + 1`

Required: Determine the range

For every value of x, there is a corresponding y value.

This implies that, the domain is:

`\infty < x < \infty`

And the corresponding range is:

`\infty < y < \infty`

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:

`(x,y)=\{(1,3), (2,6),(3,9)\}`