Are You Having Fun(ction)?
Am I a function?
What's my function?
Domain & Range
Random
100
What are all the names used to describe "x"? (there are three of them)
domain, input, independent variable
100
What is No, not a function? It does not pass the vertical line test.
100
f(-3) if f(x) = 2x +1
What it -5 ?
100
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is {-2, 3, 2}?
100
Describe how a function machine works.
x goes in and y comes out based on a rule.
200
What tells you to look up and down on the graph?
Range
200
What is Yes?
200
Let f(x) = x2 + x + 1; find f(-5).
What is 21?
200
Find RANGE:
y>=-1 [-1, infinity)
200
Which is better, y= or f(x)= ?
f(x)=
300
What tells you to look to the left and right of the graph?
Domain
300
The mapping diagram shows a function or not.
What is No, not a function?
300
Based on the graph of the function, what is f(4)?
f(4) = -2
300
Find DOMAIN:
all real numbers
(neg infinity, pos infinity)
300
Complete the table based on the function y=-2x
x y
-1
0
1
x y
-1 2
0 0
1 -2
400
How do you determine if a GRAPH is a function or not?
What is the Vertical Line Test?
400
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
What is No, because the input (x) of 2 has two different outputs (y)?
400
If f(x)=3x-1, for what value of x is f(x)=-1
x=0, f(0)
400
What is always the domain of a parabola? (the u-shape)
all real numbers, or (-inf,+inf)
400
Given the function L(d)=10d+47 where L stands for the length of a road in miles after d days, how long will the road be after 5 days?
97 miles
500
This word describes any set of ordered pairs where each x-value is paired with one y-value.
What is a Function?
500
Is this a function and why?
What is no, because x's repeat at 8?
500
Find f(4) =
0
500
What is the range of the function f(x)=x2 -5
[-5,inf) or y≥-5
500
What is it called when a function is written in the form of "f(x)"?
Function Notation