Name: 
 

Quiz 6-4: Slope-Intercept Form


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

 1. 
Graph the pair of equations. Describe any similarities or differences and explain why they are a family of graphs.
mc001-1.jpg, mc001-2.jpg
a.
mc001-3.jpg

different slope, different mc001-4.jpg
c.
mc001-7.jpg

same slope, same mc001-8.jpg
b.
mc001-5.jpg

different slope, same mc001-6.jpg
d.
mc001-9.jpg

same slope, different mc001-10.jpg
 

 2. 
Determine the slope and y-intercept of the graph of the equation mc002-1.jpg Then graph the equation.
a.
mc002-2.jpg
slope = mc002-3.jpg; y- intercept = mc002-4.jpg
c.
mc002-8.jpg
slope = mc002-9.jpg; y- intercept = mc002-10.jpg
b.
mc002-5.jpg
slope = mc002-6.jpg; y- intercept = mc002-7.jpg
d.
mc002-11.jpg
slope = mc002-12.jpg; y- intercept = mc002-13.jpg
 

 3. 
Find the slope-intercept form of the equation of the line that passes through the point mc003-1.jpg and has mc003-2.jpg.
a.
mc003-3.jpg
c.
mc003-5.jpg
b.
mc003-4.jpg
d.
mc003-6.jpg
 

 4. 
Find an equation of the line with slope 9 and y -intercept 3.
a.
mc004-1.jpgmc004-2.jpgmc004-3.jpg
c.
mc004-5.jpg
b.
mc004-4.jpg
d.
mc004-6.jpgmc004-7.jpgmc004-8.jpg
 

 5. 
Find an equation of the line containing (2, -5) and (6, 3)
a.
y = mc005-1.jpgx - 6
c.
y = 2x + 12
b.
y = mc005-2.jpgx
d.
y = 2x - 9
 

 6. 
What is the equation of the line whose graph passes through the origin and has a slope of mc006-1.jpg?
a.
y = 4x
c.
y = x + mc006-3.jpg
b.
y = mc006-2.jpgx
d.
y + mc006-4.jpg = x
 

 7. 
What is the slope of the graph of 4x + 5y = 10?
a.
-mc007-1.jpg
c.
4
b.
2
d.
-4
 

 8. 
Which line is the graph of the equation y = -3x + 1?mc008-1.jpg
a.
p
c.
r
b.
q
d.
s
 

 9. 
To calculate the charge for a load of bricks, including delivery, the Redstone Brick Co. uses the equation c = 0.42b + 25, where c is the charge and b is the number of bricks. What is the delivery charge per load?
a.
$42
c.
$25
b.
$67
d.
$17
 

Short Answer
 

 10. 
Graph the pair of equations. Describe any similarities or differences and explain why they are a family of graphs. sa010-1.jpg, sa010-2.jpg
 

 11. 
Determine the slope and y-intercept of the graph of the equation sa011-1.jpgsa011-2.jpgsa011-3.jpg. Then graph the equation.
 

 12. 
Write the slope-intercept form of the equation of the line that has slope –4 and passes through the point sa012-1.jpg.
 

 13. 
Write the slope-intercept form of an equation of the line with sa013-1.jpg and y-intercept sa013-2.jpg.
 



 
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