Topic 4 Test Review

What is the value of y when x is 21?

• 65

• 105

• 55

• 115

Which variable can be found on the x-axis?

• Origin

• Interval

• independent

• Dependent

The variable x represents a value. Which value of x makes 4(x - 5) + 10 = 18 a true statement?

• 3

• 7

• 8

• 6

Which problem situation matches the equation 5x = 250?

• Noah drove a total of 250 miles this week. He drove 5 miles more than last week. What number of miles, x, did Noah drive last week?

• Jessica charges $5 per hour to walk dogs. What is the number of hours, x, that Jessica worked if she earned $250?

• Jackie had saved $250. She gave 5% to his six year old sister. What is the amount, x, that she has left?

• Hannah exercised 250 minutes each day for 5 days this month. What is the total number of hours, x, that she exercised this month?

Evaluate the expression 12n + 10,400 when n = 10

• 11,610

• 10,220

• 11,220

• 10,520

Victoria writes the inequality a > 16 to represent that you must be at least 16 years old to use the hot tub at a health club. Is Victoria correct?

• No, because the correct inequality should be a ≥ 16.

• Yes, because a > 16 means you must be older than 16.

• No, because the correct inequality should be a < 16.

• Yes, because a > 16 means you must be at least 16.

Which graph represents the solutions of the inequality m < 4?

• Graph with open circle at 4 and arrow to the left

• Graph with closed circle at 4 and arrow to the left

• Graph with open circle at 4 and arrow to the right

• Graph with closed circle at 4 and arrow to the right

• n + 4.75 < 100

• 4.75n > 100

• 4.75n < 100

• 100 - 4.75 < n

On a hiking trip, Maria records the number of hours she hikes, h, and the total distance she covers, s. Which best describes the relationship between the variables h and s?

• The variable s is the independent variable because it determines the number of hours hiked, h.

• The variable s is the dependent variable because it depends on the number of hours hiked, h.

• The variable s is independent of variable h, and variable h is independent of variable s.

• Both variables are dependent variables because they depend on Maria's walking speed.

A Store is collecting bottled water for two different organizations. Half of the bottles of water collected are given to a local high school band. Complete the table to show the number of bottles of water, b, that are given to the band when c bottles are collected in total.

What is the value of b when c = 14?

• 7

• 8

• 10

• 28