SS-Survey of Algebra - Chapter 7

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

____	1.	Find the slope of a line that passes through points at  and 
a.	–16	c.	8	
b.		d.		

____	2.	Write the point-slope form of the equation of the line with slope –3 passing through the point .
a.		c.		
b.		d.		

____	3.	Write the point-slope form of an equation of the line through the points at and .
a.	 	c.	 	
b.	 –	d.	 –	

____	4.	Find an equation of the line with slope 8 and y -intercept 7.
a.		c.		
b.		d.		

____	5.	Find the slope-intercept form of the equation of the line that passes through the point  and has .
a.		c.		
b.		d.		

____	6.	What type of relationship exists between x and y in the scatter plot below?

a.	no relationship	c.	positive relationship	
b.	negative relationship	d.	none of these	

____	7.	Which scatter plot shows a positive relationship?
a.		c.		
b.		d.		

____	8.	The table shows the foreign and total assets of international companies. Draw a scatter plot to represent the relationship between the foreign assets and total assets of the companies. Is there a relationship between a company’s foreign assets and total assets?

Company	Country	Foreign Assets
($ billions)	Total Assets
($ billions)	
A	Netherlands / UK	69	100	
B	Britain	19	28	
C	United States	44	81	
D	Japan	23	77	
E	Mexico	4	8	
F	United States	23	41	
G	Switzerland	25	31	
H	United States	47	84	
I	France	22	46	

a.	negative relationship	c.	no relationship	
b.	positive relationship	d.	weak relationship	

____	9.	Which scatter plot shows the relationship between money earned and hours worked if a worker earns an hourly wage?
a.		c.		
b.		d.		

____	10.	What kind of relationship would you expect from the ordered pair (student’s score on a history test, student’s SAT scores)?
a.	positive relationship	c.	no relationship	
b.	undefined relationship	d.	negative relationship	

____	11.	Give the intercepts of . Then graph the equation.
a.	x-intercept is ;
y-intercept is 
	c.	x-intercept is ;
y-intercept is 
	
b.	x-intercept is ;
y-intercept is 
	d.	x-intercept is ;
y-intercept is 

____	12.	Determine the slope and y-intercept of the graph of the equation  Then graph the equation.
a.	
slope = ; y- intercept = 	c.	
slope = ; y- intercept =  	
b.	
slope = ; y- intercept = 	d.	
slope = ; y- intercept = 	

____	13.	Graph the pair of equations. Describe any similarities or differences and determine if they are a family of graphs.
,          
a.	

same slope, same 
This is not a family of graphs.	c.	

different slope, different 
This is not a family of graphs.	
b.	

different slope, same 
This is a family of graphs.	d.	

different slope, same 
This is a family of graphs.	

____	14.	Determine whether the graphs of the pair of equations are parallel, perpendicular, or neither.

a.	parallel	c.	neither	
b.	perpendicular	

____	15.	Find the slope-intercept form of the line passing through the  and parallel to the line 
a.		c.		
b.		d.		

 | Points | Graphs | Equations