1. Which relation is a function?

{(0, –9), (–9, –2), (0, –3)}

{(0, –9), (–9, 0), (–3, –3)}

{0, –9, –2, –3}

{(0, –9), (–2, –3), (–2, 0), (–3, –2)}

Identify the output values. If each input value leads to only one output value, classify the relationship as a function. If any input value leads to two or more outputs, do not classify the relationship as a function.

B

Step-by-step explanation:

Soemthing is a function if it can pass the vertical line test

the vertical line test is when you draw a vertical line and it only touches the graph once

Another way of thinking about this is no function can have two of the same values on the x axis

I'm not too sure what's happening with the third response but the answer is B

unpaid balance is : $149.99-$50 = $99.99 new balance = 149.99+2.62-50 = $102.61 finance charge = 99.99- 0.21/12= $1.75 new balance = 99.99+1.75 = $101.74 average daily balance method average daily balance= 3399.70/30 = $113.32 finance charge = $ 0.21/12ă—113.32 = $1.98 new balance = $149.99-50+1.98 = $101.97