- 1. Please find the radius of the circle with this equation: x2 + y2 - 10x + 44y = 67.
- 2. Please find the center of the circle with this equation: x2 + y2 - 78x + 28y = 7. (Express your answer as a data point, with parentheses)
A) (-39, -14)
B) (-39, 14)
C) (39, 14)
D) (39,-14)
- 3. A parabola goes through the points: (-10,383), (-7, 194) and (-1,-22) Find the vertex of this parabola. Express your final answer as a data point, with parentheses.
- 4. Identify the vertex of: x = 5.2(y + 4)2 - 11. (Express your answer as a data point, with parentheses)
- 5. What is the stretch factor (a-value) of a cubic that has inflection point (7, 19) and also passes through the point (11, 8)? (Express your answer as a reduced fraction)
- 6. Determine the domain of: x = 3(7y - 8)2 + 13
A) x E R
B) x >13
C) x ≥ 13
D) y ≥ 8/7
- 7. Please determine the range of: x = 17(3.1y + 3)2 - 10
A) y > -30/31
B) y < -30/31
C) y ≥ -10
D) y E R
- 8. Determine the x-intercept of: x = 5(2y - 7)2 + 313. Express your answer as a data point, with parentheses.
- 9. Survey data from number of Facebook friends: 80,620,180,805,1020,752,120,356,438,552. Write these numbers dow. Then, please find the mean!
- 10. Same survey from number of Facebook friends, please find the median.
- 11. Same survey from number of Facebook friends, use boxplot to describe the shape of the distribution:
A) Roughly symmetric
B) Strongly skewed left
C) Strongly skewed right
- 12. Same survey from number of Facebook friends, are there any outliers?
A) 80 is an outlier
B) 1020 is an outlier
C) 80 and 1020 are both outliers
D) No outliers
- 13. A dead body is found at 9:37 pm and the temperature is taken: 80 degrees. At 11:01 pm the temperature is taken again: 71 degrees. Outdoor temperature has been a steady 60.7 degrees. Establish time of death please!
A) Approximately 7:23 pm
B) Approximately 8:38 pm
C) Approximately 7:47 pm
D) Approximately 8:07 pm
E) Approximately 5:13 pm
- 14. Solve the system please: y = 3 log (5x - 3) and y = -x + 5
A) (-1.79, 4.028)
B) No point of intersection bro
C) (1.338, 3.136)
D) (2.07, 2.919)
E) (2.25, 2.75)
- 15. Solve for x please: (45x-7)(82x+1) = 262144. Include full decimals in your answer please
- 16. Solve for x please: (1110x-71) = 1976
A) x = 25.064
B) x= 7.416
C) x = -6.7835
D) x = 24.937
E) x = 7.428
- 17. Back to Facebook friends data: The person who has 552 friends, what is their z-score?
A) 0.2
B) 59.7
C) 1.85
D) -1.85
E) -0.2
- 18. My excellent partner for this excellent adventure was: _____________ (and assign them a nickname as well)
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