Question

Is it a function and domain and range:
{(-4,6),(5,8),(4,-7),(6,-8),(4,7)}

Answer 1

Hi there!

A function is a special type of relation where we only get 1 y-value for every value of x.

Notice how in the set, for the x-value of 4, we're getting both -7 and 7. This means this is NOT a function.

The domain is the possible x-values, and the range is the possible y-values:

Domain: {-4, 4, 5, 6}

Range: {-8, -7, 6, 7, 8}

I hope this helps!