What is usually expressed as a fraction, this is way of showing the relative size of two numbers, as when 24/30 is written as 4/5, meaning 24 has as many groups of 4 as 30 has groups of 5.

A ratio

Step-by-step explanation:

What we have here is a ratio. In a ratio we can explain that 24 has 6 groups of 4 and 30 has 6 groups of 5.

For instance,

We have a growing ratio of   in this sequence:

For this question:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: