Name: 
 

Quiz 4.1-4.3


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 
 
Find the slope of the line.
 

 1. 
mc001-1.jpg
a.
mc001-2.jpg
c.
mc001-4.jpg
b.
mc001-3.jpg
d.
mc001-5.jpg
 

 2. 
mc002-1.jpg
a.
mc002-2.jpg
c.
mc002-4.jpg
b.
mc002-3.jpg
d.
mc002-5.jpg
 

 3. 
mc003-1.jpg
a.
0
c.
mc003-2.jpg
b.
undefined
d.
1
 

 4. 
mc004-1.jpg
a.
1
c.
–1
b.
–0
d.
–2
 

Numeric Response
 

 1. 
A floral shop earns a profit of $4500 in April and $19,500 in July. What is the rate of change in profit for this time period?

 

Short Answer
 
 
Graph the linear equation.
 

 1. 
sa001-1.jpg
 

 2. 
sa002-1.jpg + 1
 

 3. 
y = sa003-1.jpgx – 1
 

 4. 
y = –1
 
 
Are the given lines parallel? Explain your reasoning.
 

 5. 
sa005-1.jpg, sa005-2.jpg
 

 6. 
sa006-1.jpg, sa006-2.jpg
 
 
Are the given lines perpendicular? Explain your reasoning.
 

 7. 
sa007-1.jpg, sa007-2.jpg
 

 8. 
sa008-1.jpg, sa008-2.jpg
 

 9. 
The number of pizzas y you need for a party is proportional to the number of people x attending the party. You will need 5 pizzas for 30 people.
a.   Write an equation that represents the situation.
b.   Interpret the slope.
c.   How many pizzas are needed for 42 people?
 

 10. 
The distance y (in miles) that you travel while riding your bike for x hours is represented by the equation sa010-1.jpg. Graph the equation and interpret the slope.
 



 
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