Independent and Dependent Variables
This is the variable that changes as a result
What is the Dependent Variable?
Wayne is determined to become a concert pianist. Every week he practices 9 more hours than his piano teacher assigns.
Let a represent the number of hours of practice assigned and c represent the number of hours of practice completed.
What is c=a+9
The solution to my equation is called this when plotted on a graph.
What is an ordered pair?
What is a coordinate?
Complete the table using the equation
b=a+2.
a: 1 2 3 4
b: 4 5 6
What is b=2?
"Split evenly" is code for this operation.
What is division?
This variable happens first and causes the dependent variable to change
What is the independent variable?
To build more muscle, Carter does 7 push-ups each day.
Let d represent the number of days and p
represent the total number of push-ups.
What is p =7d?
My independent quantities are plotted on this axis.
What is the x-axis?
Complete the table using the equation
c=h+6.
h: 1 2 3 4
c: 7 8 10
What is c=9?
"Older than" is code for this operation.
What is addition?
The manager of a restaurant decides how many servers to schedule for a particular night based upon how many reservations were made for that night.
s = the number of servers scheduled to work
r = the number of reservations
Which of the variables is independent?
What is r, the number of reservations?
An airline's new plane carries 14 passengers per flight.
Let f represent the number of flights and p
represent the total number of passengers.
What is p=14f?
My dependent quantities are plotted on this axis.
What is the y-axis?
Complete the table using the equation
w=c+8.
c: 1 2 3 4
w: 9 10 12
What is w=11?
"spent" is code word for this operation?
What is subtraction?
The Randolph farm sells eggs to local restaurants. The number of hens on the farm varies from month to month. The number of eggs that the farm is able to produce in a month depends on the number of hens on the farm.
g = the number of eggs produced by the farm in a month
h = the number of hens on the farm
Which of these values is the dependent variable?
What is g, the number of eggs?
An electronics store ships 20 computers in each delivery truck.
Let t represent the number of delivery trucks and c
represent the total number of computers shipped.
What is t =20c?
The ordered pair for this set of data would be this.
X: 3
y: 5
What is (3,5)?
Complete the table using the equation
f=d–1.
d: 10 9 8 7 6
f: 9 7 6 5
What is f=8?
"each" is code word for this operation.
What is multiplication?
A school in Brookfield is having a choir concert. The duration of the concert is determined by the number of songs performed.
d = the duration of the concert
s = the number of songs performed
Which of the variables is independent?
What is s, the number of songs?
Zack is a dentist and has 9 appointments every day.
Let d represent the number of days and
a represent the total number of appointments.
What is a =9d?
In the ordered pair (5,2) this value represents the dependent variable.
What is 2?
Complete the table for the equation:
y = x/5
x: 15 10 5 1
y: 3 1 (1/5)
What is y=2?
"Total" can be a code word for these operations.
What are addition and multiplication?