Question

6. Does the set of ordered

pairs represent a function?
Explain.
{(0, 5), (-2, -1), (0, -5), (3, 20)}

Answer 1

Answer: It does not represent a function.

What is a function?

An expression, rule, or law which relates an independent variable to the dependent variable.

Defining Characteristic: A function will only have a single input for a single output.

• The input is the x-value and the output is the y-value.
• When looking at the data we see contradictions

For the input 0, there are 2 outputs, 5 and -5

• From above we learned that a function only has a single output for each input.

Therefore, the set of ordered pairs does not represent a function.