MTH/216T: QUANTITATIVE REASONING II: WEEK 3: MIDTERM EXAM

MTH/216T: QUANTITATIVE REASONING II: WEEK 3: MIDTERM EXAMMTH/216T: QUANTITATIVE REASONING II: WEEK 3: MIDTERM EXAM 1. Given a function described as equation y = 3x + 4, what is y when x is 1, 2, and 3? A) 7, 8, 9 B) 3, 7, 11 C) 3, 6, 9 D) 7, 10, 13 Answer: D) 7, 10, 13 2. Given this equation for converting temperature from Celsius (c) to Fahrenheit (f): f = (9/5)c + 32 What is f when c is 30? A) 77 B) 86 C) 95 D) 104 Answer: B) 86 3. What are m and b in the linear equation, using the common meanings of m and b? 1 + 4x + 6 - x = y A) m is 3, b is 7 B) m is 4, b is 6 C) m is 7, b is 3 D) m is 6, b is 4 Answer: A) m is 3, b is 7 4. The figure below shows costs for a current home mortgage versus a refinanced home mortgage. Refinancing has initial costs, but results in a lower monthly payment. Which best describes the lines? A) The blue line is for refinancing, which starts cheaper but eventually is costlier B) The blue line is for refinancing, which starts costlier but eventually is cheaper C) The orange line is for refinancing, which starts cheaper but eventually is costlier D) The orange line is for refinancing, which starts costlier but eventually is cheaper Answer: D) The orange line is for refinancing, which starts costlier but eventually is cheaper Your text here 1 5. To draw a graph for y = 2x + 5, a person can draw a point at x of 0 and y of ___, a second point by going over 1 and up ___, and then draw a line through the points. A) 0, 5 B) 2, 5 C) 5, 2 D) 2, 5 Answer: C) 5, 2 6. A parking lot charges $2 per hour for the first 4 hours, then $3 per hour after that. Which equation(s) describes the total cost y as a function of the hours x? A) y = 3x + 8 B) y = 2x + 12 C) y = 2x for x of 4 or less / y = 2x + 3x for x of 5 or more D) y = 2x for x of 4 or less / y = 8 + 3(x - 4) for x of 5 or more Answer: D) y = 2x for x of 4 or less / y = 8 + 3(x - 4) for x of 5 or more 7. Cells B1, C1, and D1 contain the values Seat1Row1, Seat1Row2, and Seat1Row3. If cells B1, C1, and D1 were selected, and autofill used to fill E1, F1, and G1, what would be the autofilled values? A) Seat2Row3, Seat3Row3, Seat4Row3 B) Seat2Row4, Seat3Row5, Seat4Row6 C) Seat1Row4, Seat1Row5, Seat1Row6 D) Autofill cannot be used for these values Answer: C) Seat1Row4, Seat1Row5, Seat1Row6 8. If A2 is changed from 5 to 8, what value will appear in C3 if C3 contains the formula =A2*2? A) 8 B) 10 C) 16 D) 20 Answer: C) 16 9. The formula in cell B1 is =A$2. Autofill is used by dragging B1's autofill box across to C1, D1, and E1. What formulas will appear in C1, D1, and E1, respectively? A) =A$2, =A$2, =A$2 B) =A$2, A$3, A$4 C) =B$2, C$2, D$2 D) =B$2, C$3, D$4 Answer: C) =B$2, C$2, D$2 10. Based on the line graph shown, how did Google's stock price perform between September 2015 and December 2015? A) The stock price did not change B) The stock price decreased C) The stock price increased D) Not enough information to determine the stock price performance Answer: C) The stock price increased 11. Based on the grouped bar chart below, in which year did the largest gap between men and women exist in the U.S. workforce? A) 1970 B) 1980 C) 2000 D) 2010