Algebra Unit 5 Assessment

Function c is defined by the equation c(n) = 50 + 4n. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n. Find the value of c(8) and explain what it means in this situation.

• $54; it means that 8 visits cost $54.

• $75; it means that 8 visits will cost $75.

• 8 visits will cost $62.

• 8 visits will cost $82.

Function p represents the number of people in the museum on a Tuesday as a function of hours since the museum opened.

Here is the graph of function p.

Based on the graph and the situation, which domain and range make sense for function p?

• Domain: all numbers from 0 to 85. Range: all numbers from 0 to 14.

• Domain: whole numbers only from 0 to 14. Range: whole numbers only from 0 to 85.

• Domain: all numbers from 0 to 14. Range: whole numbers only from 0 to 85.

• Domain: whole numbers only from 0 to 14. Range: all numbers from 0 to 85.

14 + (22 - 2) =

• 34

• 37

• 40

Select all operations with fractions that require a common denominator.

• addition

• division

• multiplication

• subtraction

a + a + a + a

• a + 4 

• 4a 

• a to the fourth power 

• 4a + 4 

2r + 2 + 5r - 2 + r 

• 8r 

• 8r - 4 

• 12r 

• 7r + 4 + r 

3 + 12c - 4c 

• 16c + 3 

• 8c + 3 

• 5c 

• 8c 

Simplify:
3x - 2x - x

• 6x

• x

• 0

• 5x

Variable terms are called "variable" because:

• they are pretty.

• they never change.

• they vary (change).

• they don't have letters.

• 35x+7
• 35x-1
• 35x-7
• -35x-7