Name: 
 

Unit 06-07 - Literal Equations and Situations


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which equation shows  w + ax = 3   solved for w?


a.
w = ax – 3
c.
w = 3 – ax
b.
w = ax + 3
d.
w = 3 + ax
 

 2. 
Which equation shows   mc002-1.jpg  solved for t?
a.
mc002-2.jpg
c.
mc002-4.jpg
b.
mc002-3.jpg
d.
mc002-5.jpg
 

 3. 
The graph below shows the level of water in gallons, g,  inside a washing machine during a 15 minute wash cycle as a function of time, t, in minutes after the machine is started.
mc003-1.jpg
Which of the below describes the interval over which the water in the washing machine is constant?
a.
mc003-2.jpg
c.
mc003-4.jpg
b.
mc003-3.jpg
d.
mc003-5.jpg
 

 4. 
Jake was rewriting the equation for the Surface Area of a cylinder so that it was solved for ‘h’
mc004-1.jpg
His friend Niki noticed that he made an error and explained it to Jake.  What error did Niki point out to Jake if she was correct that he did make a mistake?
a.
On the first step, Jake should have added 2p2 to both sides instead of subtracting.
b.
On the last step, Jake can’t divide both sides by 2pr all at the same time.
c.
On the last step, Jake didn’t simplify the left side correctly.
d.
Niki is wrong.  Jake did it correctly.
 

 5. 
Three of the equations below show the same relationship between the length of a leg of a right triangle  (a), the length of the other leg of a right triangle (b), and the length of the hypotenuse (c).  Which is the only equation that shows a different and incorrect relationship?  mc005-1.jpg
(you may assume that all variables represent positive numbers)
a.
mc005-2.jpg
c.
mc005-4.jpg
b.
mc005-3.jpg
d.
mc005-5.jpg
 

 6. 
The graph shows the height of a sunflower over a period of time.
mc006-1.jpg
Over which interval below did the sunflower grow the fastest?
a.
0 days to 20 days
c.
40 days to 60 days
b.
20 days to 40 days
d.
60 days to 80 days
 



 
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