Exam 1: An Introduction to Data and Functions

Use the graph below to answer the questions. - A) What was the average gas price in month 6 of 1999? (Round to the nearest $0.05.) B) In what month did gas prices reach $1.40 per gallon? C) After which month did milk prices begin to decrease?

The table shows starting salaries from a survey of recent college graduates: What is the relative frequency of a graduate having a salary between $36,000 and $40,000? Round your answer to 2 decimal places, if necessary

On a recent test in a College Algebra class the following scores were recorded: Find each of the following: A) the meanand and B) the medianIf necessary, round answers to 2 decimal places.

For the given equation , which could never be a value of y?

If Fancis pays 23% of each paycheck for payroll deductions, which function would properly describe her take-home pay, T, as a function of her gross pay, p?

Which one of the following ordered pairs that satisfy the equation.

Below is a pie chart of the sources of points in a College Algebra class. According to the chart, what is the smallest source of points in the class?

Over what interval(s) is the function negative? Write your answer in interval notation. If two intervals are needed, write your answer in the form .

Determine whether the ordered pair, (-3,-5), satisfies the equation.

A plumber charges $20 for a house call plus $27 per hour while she is there, up to a maximum of 8 hours. Write a formula to describe the price, p, of a house call by the plumber in terms of the hours, h, spent at the house.

Over what interval(s) is the function negative? Write your answer in interval notation.

Find the mean of the data set below. 43, 34, 46, 38, 43, 37, 42, 23, 27, 40, 43, 21 Round your answer to 2 decimal places.

In a group of seven people the heights, in inches, of six are known to be 66, 61, 69, 69, 63, and 68. If the mean height of all seven people is 65, then what must the seventh height be?

Use technology to graph the function and then determine the interval on which the graph is concave downward. State your answer in interval notation. y = 5x³ - 3x

Use technology to graph the function and then determine the interval over which the function is increasing. State your answer in interval notation. y = 5x⁴ - 40x²

On what interval is this graph increasing. State your answer in interval notation.

Use the graph to fill in the table.

The graph below shows the number of birds at a bird feeder as a function of time. What event most likely occurred during interval E?

Identify the maximum of this function over the interval shown.

Consider the table giving values for height and weight of 5 individuals. Determine which of the following best describes the relationship between height and weight.