Finite Mathmatics

midterm_finite_math.docx

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Question 1

$C:\Users\rlee\Desktop\1.png$

	A.	( 7, –3 )
	B.	( 6, –2 )
	C.	( 2, –6 )
	D.	( –6, 2 )
	E.	( –7, –2 )

Question 2

some_text

	A.
	B.
	C.
	D.
	E.

Question 3

some_text

	A.
	B.
	C.
	D.

Question 4

$C:\Users\rlee\Desktop\4.png$

	A.	$C:\Users\rlee\Desktop\a.png$
	B.	$C:\Users\rlee\Desktop\b.png$
	C.	$C:\Users\rlee\Desktop\b.png$
	D.	No solution

Question 5

some_text

Question 6

$C:\Users\rlee\Desktop\6.png$

	A.	$C:\Users\rlee\Desktop\a.png$
	B.	$C:\Users\rlee\Desktop\b.png$
	C.	$C:\Users\rlee\Desktop\c.png$
	D.	infinitely many solutions
	E.	no solution

Question 7

$C:\Users\rlee\Desktop\7.png$

	A.	$C:\Users\rlee\Desktop\a.png$
	B.	$C:\Users\rlee\Desktop\b.png$
	C.	$C:\Users\rlee\Desktop\c.png$
	D.	No solution

Question 8

some_text

	A.
	B.
	C.
	D.
	E.

Question 9

some_text

	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 10

some_text

	A.
	B.
	C.
	D.
	E.	y is not a linear function of x.

Question 11

some_text

	A.
	B.
	C.
	D.
	E.

Question 12

$C:\Users\rlee\Desktop\12.png$

$C:\Users\rlee\Desktop\a.png$

$C:\Users\rlee\Desktop\b.png$

$C:\Users\rlee\Desktop\c.png$

No solution

Question 13

Find the slope of the line that passes through the given pair of points.

(2, 2) and (8, 5)

	A.
	B.
	C.
	D.
	E.

Question 14

Find an equation of the line that passes through the points (1, 4) and ( -7, -4)

A.	y = 7x + 7
B.	y = x + 3
C.	y = 3x - 7
D.	y = 3x - 3

Question 15

$C:\Users\rlee\Desktop\15.png$

$C:\Users\rlee\Desktop\a.png$

$C:\Users\rlee\Desktop\b.png$

$C:\Users\rlee\Desktop\c.png$

$C:\Users\rlee\Desktop\d.png$

$C:\Users\rlee\Desktop\e.png$

Question 16

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.

some_text

Question 17

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 = -8

a = 4

a = -4

a = 8

Question 18

$C:\Users\rlee\Desktop\18.png$

	A.	The matrix is in row-reduced form.
	B.	The matrix is not in row-reduced form.

Question 19

$C:\Users\rlee\Desktop\19.png$

( 0, 2 )

( 8, 2 )

( 4, –6 )

( –2, 4 )

( 4, –2 )

Question 20

some_text

Question 21

some_text

	A.
	B.
	C.
	D.
	E.

Question 22

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.
	B.
	C.
	D.

Question 23

some_text

	A.
	B.
	C.
	D.
	E.

Question 24

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

	A.
	B.
	C.
	D.
	E.	y is not a linear function of x.

Question 25

some_text

	A.
	B.
	C.
	D.
	E.