Name: 
 

TAKS Math 1.A.1.a. - Independent and Dependent Quantities in Functions - Post-test



 

 1. 

James wants to make sure that every student in his class gets a copy of his ideas to improve the school if he becomes the class president.  He makes two copies of his ideas, one to be passed out in homeroom and another to be passed out at the election meeting.  He also makes 100 more, in case someone loses their copy.  This relationship can be expressed as mc001-1.jpg, where x is the number of students in his class.  What is the dependent quantity in this functional relationship?
a.
the number of students in his class
c.
the number of ideas he had
b.
the number of copies he made
d.
the 2 copies of his idea
 

 2. 

The Good Painters painting company charges its customers a one time fee of $450 to come out to a home and make an estimate.  They charge $50.00 per wall to be painted.  This relationship can be expressed mc002-1.jpg.  What is the independent variable in this functional relationship?
a.
The total amount to get one’s house painted
c.
The price charged per wall to be painted
b.
The number of walls to be painted
d.
The fee for an estimate
 

 3. 

The Rose Garden flower shop takes online orders for bouquets of plants.  The company charges $4.00 for every rose in a bouquet.  They also charge $15.00 for their online services, which include card and message of delivery.  This relationship can be expressed as mc003-1.jpg, where x is the number of flowers in a bouquet.  What is the dependent quantity in this functional relationship?
a.
The price per rose
c.
The total price of a bouquet
b.
The $15.00 charged for online services
d.
The number of flowers in a bouquet
 

 4. 

Henry makes $12.50 per hour.  This relationship can be expressed as f(x)=12.50x, where x is the number of hours per week that Henry works..  What is the dependent quantity in this functional relationship?
a.
The amount of money Henry earns
c.
The amount of money that Henry loses to taxes
b.
The amount of money Henry makes per hour
d.
The amount of hours Henry works
 



 
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