This discussion is really based on one's personal opinion. To me I would choose the method that
gets me the answer faster. I would choose the Guassian method because it is simple and uses an
elementary form that is easy for me to understand. The Cramer ru
i. C = cost = fixed + variable cost
C = $100,000 + $100(x)
ii. R = revenue = amount of money made
R = (x)$300
iii. The break-even point is the point at which your Total Cost (C) is the same as your Total Revenue (R).
Basically it is the where you make $0
i. It represents the graph of a function because there is only one y value for each x
value on the graph.
ii. From the graph x=-2, y is around 2. So f(-2)=2
iii. The domain of f is the x values between -2 and 2 not including 2.
iv. The range of f is the y
Interpreting a Functions Graph
Tasks:
Given the information on the graph, answer the following questions:
i.
ii.
iii.
iv.
Explain why f represents the graph of a function.
Use the graph to find a reasonable estimate of f ( 2).
What is the domain of f?
Wha
i. Point slop form
Slope intercept form
ii. Point slope form
Slope intercept form
iii. Point slop form
Slope intercept form
iiii. Point slop form
Slope intercept form
i. cfw_(3,4),(5,9),(9,9),(2,3) Is a function because none of the four ordered pairs have the same first
coordinate.
ii. cfw_(0,0),(0,1),(1,4),(2,4) Is not a function because the first two ordered pairs have the same first
coordinate 0.
iii. cfw_(2,1),(4,5
1) The estimated lowest earnings were below $12 I would estimate it to be $11.50. This was in 01/96.
2) Yes this graph does have x and y intercepts. It represents the average hourly earnings.
3) The year the earnings hit $16 and hour was in 2005.
1) The lowest crime rate was approximately 20,000 in 2003.
2) The x-axis in the graph would be the Years.
3) The y-axis in the graph would be the Number of victims per 1000 persons.
Everyday Use of Numbers
Numbers are used every day in our lives. Depending on how you write that number will determine
whether it will be a large number or a small one. For this assignment I am choosing something that
everyone uses and hates at the same t
11.7
28. 30_C_6
C(30,6)
30!/6!(30-6)
593775 Probability of winning with 1 ticket is 1/593775 for 100 tickets you just carry
the decimal to the left and round up giving you 1/5938
31. 129/174
32. 29/174
33. 56/174+129/174-56/174=128/174
34. 29/174+44/174-2
11.6
36. This is fairly easy. To get the answer you multiply 26 three times or 263 which gives you the
answer 17,576.
50. n=11, r=4
11_C_4=(11!)/(4!(11-4)!)
(11!)/(4!7!)
(11x10x9x8)/(4x3x2x1)
7920/24=330
11_C_4=330 different committee
11.1
70. a) (2.9+3.6+4.5+4.9+5.5)/(5)
Add 3.6 to 2.9 to get 6.5.
(6.5+4.5+4.9+5.5)/(5)
Add 4.5 to 6.5 to get 11.
(11+4.9+5.5)/(5)
Add 4.9 to 11 to get 15.9.
(15.9+5.5)/(5)
Add 5.5 to 15.9 to get 21.4.
(21.4)/(5)
Divide 21.4 by 5 to get 4.28.
b) (1)/(5)[(0
4.2
20. (take log of both sides)
answer = y=log(base 8) (300)
4.3
16. =
54. =
74. = 1.4595
103. a) )
b) using the formula in part a you will get the answer
104. a)
24. A = 1/2
Period = 2
Phase shift =
25. A = -2
Period =
Phase shift = -/4
26. A = -3
Period =
Phase shift = -/4
27. A = 3
Period = 2
Phase Shift = -2/
28. A = 3
Period = 1
Phase Shift = -2/
29. A = -2
Period = 1
Phase Shift = -2
30. A = -3
Period = 1