W4 Finite Mathematics Midterm
Question 1
Find the constants m and b in the linear function f(x) = mx + b so that f(1) = 2 and the straight line represented by f has slope – 1.
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Question 2
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No solution 
Question 3
A. 
x = 16, y = 0, z = 16, t = 0, u = 80, v = 21, w = 61, P = 180 

B. 
x = 0, y = 16, z = 0, t = 0, u = 80, v = 21, w = 61, P = 96 

C. 
x = 80, y = 16, z = 0, t = 0, u = 0, v = 21, w = 61, P = 68 

D. 
x = 80, y = 0, z = 0, t = 16, u = 80, v = 21, w = 61, P = 174 
Question 4
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Question 5
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No solution 
Question 6
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No solution 
Question 7
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Question 8
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Question 9
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infinitely many solutions


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no solution 
Question 10
Metro Department Store’s annual sales (in millions of dollars) during 5 years were
Annual Sales, y  5.8  6.1  7.2  8.3  9 
Year, x  1  2  3  4  5 
Plot the annual sales (y) versus the year (x) and draw a straight line L through the points corresponding to the first and fifth years and derive an equation of the line L.
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Question 11
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Question 12
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Question 13
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y is not a linear function of x. 
Question 14
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Question 15
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y is not a linear function of x. 
Question 16
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( 0, 2 ) 

B. 
( 8, 2 ) 

C. 
( 4, â€“6 ) 

D. 
( â€“2, 4 ) 

E. 
( 4, â€“2 ) 
Question 17
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The matrix is in rowreduced form. 

B. 
The matrix is not in rowreduced form. 
Question 18
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Question 19
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Question 20
Find the slope of the line that passes through the given pair of points.
(2, 2) and (8, 5)
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Question 21
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( 7, â€“3 ) 

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( 6, â€“2 ) 

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( 2, â€“6 ) 

D. 
( â€“6, 2 ) 

E. 
( â€“7, â€“2 ) 
Question 22
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Question 23
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Question 24
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Question 25
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Category: Mathematics