Math 27

Question 1:

The daily total numbers of students riding the bus to Ridgefield High School last Monday through Friday were 154, 161, 116, 142, and 152. What was the average number of students riding the bus to school each day?

Question 2:

The Lakewood High School track team has 7 more distance runners than sprinters. In terms of s, the number of sprinters, how many distance runners does the Lakewood High School track team have?

Question 3:

The domain of a function f is the set of all values of x for which f(x) is defined. Which of the following sets is the domain of this function?

Question 4:

A rectangular pool that is 8 feet longer than it is wide has an area of 560 square feet. How many feet long is the pool?

Question 5:

If (x^m)(xⁿ)= x⁶ (as long as x is not zero), which of the following must be true?

Question 6:

When Janine walked to her friend’s house this morning, the trip took t minutes. On the way back, she borrowed her friend’s bike and was able to travel four times as fast as her walking. Which of the following is an expression for the total number of minutes Janine travelled today?

Question 7:

The complete graph of the function f is shown in the xy-plane. Which of the following values for f(x) occur when the graph is increasing?

I.   f(5/2)

II.   f(-1)

III.   f(8)

Question 8:

In the xy-plane, the point (2,7) lies on the graph of the function f(x) = x² – 2b + 13. What is the value of b?