Bonus
Evaluating Function Rules
Given output, find input
Domain/Range
Is it a Function?
100
Name an Elton John song
varies
100
Evaluate f(x)=-3x if x=2
What is -6?
100
Given f(x)=2x+4, find x if f(x)=2
x=-1
100
Domain of #1?
-inf to 5
100
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
Each x has one y value
200
Name a movie that came out in 2018
varies
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
Given f(x)=7x+4, find x if f(x)=39
x=5
200
Range of #2?
(-4,4)
200
Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?
What is False, the points fail the vertical line test
300
Who was president in 1971?
Nixon
300
Evaluate f(x)=-3 - x if x=-6
What is 3?
300
Given f(x)=2x+1, find x if f(x)=-19
x=-10
300
Domain of #4?
-inf, 3
300
Is it a function?
| x | y |
| 2 | 4 |
| 1 | 5 |
| 2 | 6 |
No, because x repeats with a different y value
400
What is the most populous state capital in the US?
Phoenix
400
Evaluate f(x)=25 + -4x if x=5
What is 5?
400
Given f(x)=-12x+10, find x if f(x)=130
x=-10
400
Range of #7?
[-3,3]
400
Yes, no repeated x values with different y values
500
How many counties are in Pennsylvania?
Closest wins, exact gets double points
67
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Given f(x)=x^2 + 7x + 12, find x if f(x)=12
x=0
500
Domain of #8
-inf , 0]
500
Is it a function?
What is NO because it does not pass the Vertical Line Test?