Question

Given: A = {(0, 0), (2, 1), (3, 1.5), (4, 2), . . .} Is A a function and why?

Answer 1

{(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)}. I'll just list the x-values for the domain and the y-values forthe range: domain: {–3, –2, –1, 0, 1, 2}. range: {5}. This is another example of a "boring" function, just like the example on the previous page: every last x-value goes to the exact same y-value. But each x-value is different.

Answer 2

A is a function and each has image and this image is unique.

Explanation:

Her in each ordered pair the first number is called domain and range is formed second element of each ordered pair.

A relation is said to be function if for each element has image and this image is unique

Here we can see that each element has image ( because of ordered pair)

and this image is unique for each number.

more over ,we can see that second number is half of first one. and we know that half of a number is unique .

So its a function