Function or Not
Function Machine
Sequence Showdown
Graph It
Data Detectives
100
Is {(1,2),(2,3),(3,4)} a function?
Yes; each input has one output
100
If f(x)=3x+4, find f(2).
10
100
Find the common difference: 4, 9, 14, 19, …
5
100
What does domain describe on a graph?
All possible x-values (inputs).
100
What type of correlation (slope)? 
Positive
200
Is {(2,5),(2,8),(3,1)} a function? Explain.
No; input 2 has two outputs.
200
If g(x)=5x-7, find g(4).
13
200
Find the next two terms: 30, 24, 18, …
12, 6
200
What does range describe on a graph?
All possible y-values (outputs).
200
What type of correlation (slope)?
Negative Correlation
300
Find the domain: {(-3,2),(0,4),(5,2)}.
{-3, 0, 5}
300
If f(x)=6x+3 and f(x)=45, find x.
7
300
If a₁=8 and aₙ=aₙ₋₁+4, find a₆.
28
300
A segment runs from (-2,1) to (4,7), both endpoints included. Give its domain.
-2 ≤ x ≤ 4
300
A line of best fit has slope 2 and y-intercept 3. Write its equation.
y=2x+3
400
Find the range: {(1,-4),(3,2),(5,-4),(7,8)}.
{-4, 2, 8}
400
For f(x)=2x+1 and 1 ≤ x ≤ 6, find the range.
3 ≤ y ≤ 13
400
Write an explicit rule for 7, 12, 17, 22, …
aₙ=5n+2
400
The same segment runs from (-2,1) to (4,7). Give its range.
1 ≤ y ≤ 7
400
A best-fit line passes through (0,4) and (5,14). Find its slope.
2
500
A relation has points (a,3), (b,3), (c,3). Can it be a function? Why?
Yes; different inputs may share the same output.
500
A ticket costs $12 plus a $5 order fee. Write C(n), then find C(7).
C(n)=12n+5; C(7)=$89.
500
A theater has 18 seats in row 1 and adds 3 seats per row. How many seats in row 25?
90 seats (18+24×3).
500
A bakery sells whole boxes for $15 each plus an $8 fee, with a $100 budget. At least one box must be bought. Give the domain of box count n.
Integers 1 ≤ n ≤ 6 (15n+8 ≤ 100).
500
A trend line is y=1.5x+2. Predict y when x=8 and explain the meaning of 1.5.
y=14; y increases by about 1.5 per 1-unit increase in x