11MA2U Functions and Relations

Is the image a function?

• Function

• Not a function

What is the domain?

• All the possible x-values in a relation

• All the possible y-values in a relation

• the area of the curve

• the size of the gradient

What is the range?

• All the possible x-values in a relation

• All the possible y-values in a relation

• the max point - the min point

• the gradient of the function

Is the image a function?

• function

• not a function

What is the domain of the relation?

•  $-2\le x\le2$  

• all real values of x

• $x\ge2$

• $x\ge-2$

What is the domain of the relation?

• all real values of y

• all real values of x

• $-2\le y\le2$

• $-2\le x\le2$

Is this graph a function?

• function

• not a function

State the domain of the graph

• all real values of x

• all real values of y

•  $x\le4$  

• $-2\le x\le2$

State the range of the graph

• all real values of y

• all real values of x

• $-2\le y\le2$

• $y\le4$

What do we use to determine if a relation is a function?

• textbook

• wikipedia

• vertical line test

• quadratic formula