Alg 1 Section 1.7 Functions Day 2

What is the domain?

• the set of all x-values

• the set of all y-values

What is the range?

• the set of all x-values

• the set of all y-values

What is the domain of the following graph?

• D: {-5, -1,  0 , 1, 5}
• D: {-4, -2, 0, 3, 6}

What is the range of the following graph?

• R: {-5, -1, 0 , 1, 5}

• R: {-4, -2, 0, 3, 6}

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function

Is this a function? 

• Yes
• No

• Function
• Not a Function

• Function
• Not a Function