Algebra Keystone Review

Anna's Baker charges a delivery fee of $10.95 for one delivery order of cupcakes. Each cupcake in the order costs $1.15. Which equation describes the relationship between the number of cupcakes ordered (x) and the total cost (y), in dollars, of the deliver order?

• y = 1.15x

• y = 12.10x

• y = 1.15x + 10.95

• y = 10.95x + 1.15

Tags

CCSS.6.EE.C.9

Which set of ordered pairs is a function?

• {(-10, 4), (-8, 3), (-8, 2), (-4, 1)}

• {(-2, 4), (0, 4), (2, 4), (2, 6)}

• {(1, 5), (1, 6), (2, 7), (3, 8)}

• . {(-1, 1), (0, 0), (1, 1), (2, 2)}

Tags

CCSS.8.F.A.1

Simplify: 
(3x²+8x-8)-(-x²+6x+4)

• 2x²+8x-4
• 2x²+8x-12
• 4x⁴+8x-4
• 4x²+2x-12

Tags

CCSS.HSA.APR.A.1

The graph of a line is shown below:
What is the y-intercept of the line?

• -8/5
• -5/8
• 5
• 8

A graph of a relation is shown below:
Which statement about the relation is true? 

• The relation is not a function of x because all functions are linear
• The relation is a function of x because values of x increase towards infinity
• The relation is a function of x because each value of y corresponds to one value of x
• The relation is not a function of x because more than one value of y may correspond to the same value of x

A relation is shown below:
{(2, 140), (5, 350), (14, 960)}
What is the domain of the relation?

• {2, 5, 14}
• {140, 350, 960}
• {all whole numbers from 2 to 14}
• {all whole numbers from 140 to 960}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

The number of cookies sold at a bakery each day last week is listed below.
264, 203, 318, 502, 341, 173, 299
The circle graph represents the types of cookies sold during the entire week.  Based on the data and the circle graph, how many more chocolate chip cookies than oatmeal cookies will most likely be sold during one day next week?

• 25
• 75
• 125
• 275

The graph below shows the relationship between the number of minutes (x) that have passed since an airplane began its decent and height above the ground (y), in feet, of the airplane.
Based on the graph, how long after it starts its decent will the airplane reach a height of 3,000 feet?

• 14 minutes
• 16 minutes
• 28 minutes 
• 32 minutes

Tags

CCSS.HSF.LE.B.5

A pattern in Shannon's phone charges is shown in the table. The pattern continues. Which graph represents the pattern in the charges?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

Brent works at the tire store. He recorded the number of tires sold each day for two weeks in the stem-and-leaf plot. What is the median of the number of tires sold each day?

• 100

• 117

• 121

• 124