Math Quiz -Graphs/Charts Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. Math Quiz -Graphs/Charts 1 / 5 1. The graph of the function f is shown. Which of the following is a value of x for which f(x) = 0 ? a) -1 b) 0 c) 1 d) 4 The function f(x) = 0 when the graph of the function intersects the x-axis. The graph of f(x) intersects the x-axis at x = 1. So the answer is C. 1. 2 / 5 2. The daily high temperatures, in degrees Fahrenheit, for a city in the month of February in 2017 are summarized in the box plot shown. Which of the following is closest to the median of the high temperatures, in degrees Fahrenheit, of the city in February 2017? a) 35 b) 42 c) 48 d) 51 The median is the middle value in a sorted, ascending or descending, list of numbers. Since we have a box plot, we can identify the median by looking at the middle line (the line that divides the box into two equal parts). The middle line in the box plot corresponds to a temperature of 42 degrees Fahrenheit. So the answer is B. 42. 3 / 5 3. The function f models Jack's pulse, in beats per minute (bpm), as a function of his speed, in kilometers per hour (km/h), on a stationary bicycle. Based on the model, what was Jack's pulse, in bpm, when his speed was 0 km/h? a) 4 b) 15 c) 63 d) 123 The graph shows that the function f intercepts the y-axis at 63. This means that when Jack's speed is 0 km/h, his pulse is 63 beats per minute. So the answer is C. 63. 4 / 5 4. What is the median of the data set summarized in the frequency table? a) 2 b) 3 c) 4 d) 5 The median is the middle value in a sorted, ascending or descending, list of numbers. Since we have a frequency table, we can create the sorted list by adding the frequencies together until we reach at least the middle value. Value | Frequency | Cumulative Frequency ------- | -------- | -------- 1 | 1 | 1 2 | 3 | 4 3 | 2 | 6 4 | 4 | 10 5 | 7 | 17 The median is the 9th value, which is 4. So the answer is C. 4 5 / 5 5. The function f(x) is graphed . If g(x) = f(x)-1, which of the following statements is true? a) g (x) is always less than or equal to zero. b) g (x) is always either greater than or equal to zero, or less than or equal to negative two. c) g (x) is always greater than or equal to negative two. d) g (x) is always greater than negative one, but less than five. The lowest point is above -2. But the highest points go to infinity. So the answer is C Your score is 0%