Chapter 9 Review
Algebra: Relationships Between
Variables
Problem of the Day
Choose the best term from the box
to complete the sentences.
1. A(n) ______________ has a value that
depends on the value of another quantity.
2. The solutions of a(n) _______________ form a
straight line on the coordinate plane.
3. A(n) ______________ has a value that
determines the value of another quantity.
Write an equation for the relationship
shown in the table
x
100
200
300
400
500
y
10
20
30
40
50
The table shows the total cost c to
make n pizza at the pizza place.
Total Cost of Pizzas
Number of pizzas, n
1
2
4
5
Total Cost, c
$8.00
$16.00
$32.00
$40.00
If the pattern in the table continues, what is the
total cost of 12 pizzas?
The table shows the total cost c to
make n pizza at the pizza place.
Total Cost of Pizzas
Number of pizzas, n
1
2
4
5
Total Cost, c
$8.00
$16.00
$32.00
$40.00
For what number of pizzas n will the total cost be
$120.00?
The linear equation y=10x represents
the cost y in dollars of x movie tickets.
Which ordered pair lies on the graph of
the equation?
a) (10, 10)
b) (100, 30)
c) (5, 50)
d) (50, 5)
The table shows the time it takes to
dive to certain depths.
If the pattern in the table continues, how deep with
the diver be after 30 minutes?
The table shows the time it takes to
dive to certain depths.
How long will it take a diver to reach 68ft?
Write an equation for the relationship
show in the table
x
20
40
60
80
100
y
60
120
180
240
300
Homework
Chapter 9 Review
Practice Book pages 179-180 all
Study for your Chapter 9 test!