A sequence that adds or subtracts the same amount between every number.
100
What is the domain of this table?
x 12 13 15 21
y 18 29 32 81
D= 12, 13, 15, 21
200
Evaluate f(x)=5x+12 for x=-2.
2
200
Would the equation y=5x+1 be linear? Explain.
Yes, because it is in y=mx+b form.
200
What is the slope and which way would the graph face in y=-4 l x-2 l +5?
slope=-4 and faces down since it is negative
200
8, 14, 20, 26, ... Is this an arithmetic sequence? Explain.
Yes, because it adds 6 each time.
200
The following table is about gas left in your car. Is the domain discrete or continuous? Explain.
minutes x 0 5 10 15
gallons y 60 45 30 15
Continuous because you could have 1.5 minutes and would be able to find the number of gallons.
300
Evaluate f(x)=-1.5x-1 for x=-5.
6.5
300
Is y=4x^2-3x-8 linear? Explain.
No, because of the x to the second power.
300
What is the vertex of y=-4 l x-2 l +5?
(2, 5)
300
-9, -7, -5, -3,... What is the common difference?
2
300
c(x) = 8x represents the cost of going to the movies for x people. How much would 12 people cost?
$96
400
Find x for h(x)=7-3x if f(x)=22.
x=-5
400
Is the table linear? Explain.
x 3 6 9 12
y 1 10 19 28
Yes, it is linear. The slope would be 9/3.
400
Graph and provide the 3 blanks for y= l x+3 l -4.
Graph
400
8, 14, 20, 26, ... Write the equation for this sequence.
y=6x+2
400
c(x) = 8x represents the cost of going to the movies for x people. How many people could go to the movies for $100?
12 people
500
Find x for f(x)=5x+12 for f(x)=15
x=3/5
500
Give the equation of the following table.
x 0 5 10 15
y 50 40 30 20
y=-2x+50
500
Graph and provide the 3 blanks for y=2 l x-1 l.
Graph
500
-9, -7, -5, -3,... Write an equation for this sequence. Use your equation to find the 20th term.
y=2x-11 and the 20th term is 29.
500
The first row in a theater has 20 seats. Each row after the first has two more seats than the row before it. Write a table of values, write an equation for the table. Then find the number of seats in row 20.