Equations and Functions

Question 1

What do functions describe?

Answer 1

Summaries relationships between variables

Describes relationships between dependent variable of interest (y) and experimentally manipulated independent variable (x)

Question 2

What is the difference between functions and equations?

Answer 2

Function: Each input has one output- each x has only one y but 2 different values of x can result in the same y

Equations: Two different values of X can result in the same value of Y and 2 different values of Y can result in one X e.g. square roots

Question 3

What is a constant function?

Answer 3

Functions where input has no effect on output= Straight horizontal line, e.g. f(x)= c