Exam 1: An Introduction to Data and Functions

Find f(-4) for the function f(x) = -4x² - 3x + 6

Select all of the following ordered pairs that satisfy the equation.

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

Jeremy has instructed his accountant to split a $12,000 deposit to his retirement account into the investments as shown in the pie chart. What percent of his investment was allocated to global equities?

Over what interval is the function increasing? Write your answer in interval notation.

For the following data: 68, 67, 75, 78, 66, 77, 66, 68, 80, 75, 79, 11, 62, 75, 73, 63, 75, 71 Calculate A) the mean (Round to 2 decimal places.), B) the median, and C) then identify any number that should be considered an outlier.Round your answer to 2 decimal places.

For the following data: 51, 47, 63, 59, 54, 57, 61, 51, 54, 50, 65, 54, 59, 15, 62, 53, 50, 57, 64, 63, 61, 62, 54, 51, 65 Which of the following is the median?

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

Determine if this table describes a function.

Solve the following equation for y in terms of x and then express in f(x) form. 5(y - 2) = 4y + 2x(x + 3)

The 2006 graduates of Bottom Line University all got great jobs. Their starting annual salaries are: $32,000; $50,000; $54,000; $60,000; $46,000; $46,000; $37,000; $53,000; $51,000; and $2.5 million (At 6'10'' "Hoops" Johnson is playing professional basketball.) Which of the mean or median is a better indication of what their graduates typically make?

Each of these tanks is being filled with a pipe that delivers 6 gallons of water per minute. Which graph best represents the height of the water in each tank as a function of time?

Find the domain of the function,

Find a formula that gives y in terms of x.

The frequency table below describes the age distribution of students in a college algebra class. Based on this information, estimate the smallest possible value for the mean age of this class. Which of the following is the smallest possible mean? Round your answers to 2 decimals if necessary.

Use the bar chart below to find the mean of the data set. Round your answer to 2 decimal places.

Find the value that completes the ordered pair, (__,1).

The bar chart below was created using the number of children of each of the last 20 U.S. Presidents. Find the relative frequency of presidents who had 3 children.

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

Find the median of the data set below. 28, 60, 46, 31, 13, 55, 40, 64, 24, 57