W4 Finite Mathematics Midterm

| May 26, 2015

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.

A.

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B.

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C.

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D.

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Question 2

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B.

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C.

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D.

No solution

 

Question 3

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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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D.

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Question 5

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D.

No solution

 

Question 6

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D.

No solution

 

Question 7

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D.

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Question 8

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Question 9

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D.

infinitely many solutions

 

E.

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.

A.

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B.

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C.

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Question 11

If the line passing through the points (2, a) and (5, – 3) is parallel to the line passing through the points (4, 8) and (- 5, a + 1) , what is the value of a?
A.
B.
C.
D.

 

Question 12

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D.

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Question 13

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E.

y is not a linear function of x.

 

Question 14

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E.

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Question 15

Determine whether the equation defines y as a linear function of x. If so, write it in the form y = mx + b. 8x = 5y + 9
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B.

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D.

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E.

y is not a linear function of x.

 

Question 16

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A.

( 0, 2 )

B.

( 8, 2 )

C.

( 4, –6 )

D.

( –2, 4 )

E.

( 4, –2 )

 

Question 17

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A.

The matrix is in row-reduced form.

B.

The matrix is not in row-reduced 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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B.

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D.

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E.

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Question 21

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A.

( 7, –3 )

B.

( 6, –2 )

C.

( 2, –6 )

D.

( –6, 2 )

E.

( –7, –2 )

 

Question 22

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Question 23

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Question 24

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Question 25

Find an equation of the line that passes through the points (1, 4) and ( -7, -4)
A.
B.
C.
D.

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G180 Module 08 Assignment

Category: Mathematics

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