I need help finding the rate of change of a function

Describe the relationship of input and output values for composite functions

What is the significance of the point where the graph of a linear function and its inverse intersect

Why do we need to study about one-to-one function? Write your own example of a one-to-one function and represent in terms of ordered pairs, graph, and table of values.

Sketch a graph of the volume of water in the bottle as a function of the height, as the bottle is being filled up with water. Then sketch volume as a function of height.

Identify the relations which are also functions.

A tank holds 200 gal of water that contains 40 lb of dissolved salt. A brine (salt) solution is flowing into the tank at the rate of 2 gal per minute while the solution flows out at the same rate. The brine solution entering the tank has a salt concentration of 4 lb per gal. (a) Find a function that represents the amount of salt in the tank at any time. (b) As time passes, what happens to the salt concentration?

What is an even function?

a swimming pool in a hotel is draining at a rate of 3 feet per minute. What is the function,domain, and range?

Do you use x-coordinates or y-coordinates when describing where functions increase, decrease, or are constant?