SBAC Grade 8 Math Practice Test

Question 1

The total length of the world's coastlines is about 315,000 miles. Which answer expresses this in scientific notation?

Accepted Answer

3.15×〖10〗^5

Answer

3.15×〖10〗^(-6)

Answer

3.15×〖10〗^(-5)

Answer

3.15×〖10〗^6

Question 2

John’s Gym charges its members according to the equation C=40m where m is the number of months and C represents the total cost to each customer after m months. Ralph’s Recreation Room charges its members according to the equation C=45m. What relationship can be determined about the monthly cost to the members of each company?

Accepted Answer

John’s monthly membership fee is less than Ralph’s monthly membership fee.

Answer

John’s monthly membership fee is equal to Ralph’s monthly membership fee.

Answer

John’s monthly membership fee is more than Ralph’s monthly membership fee.

Answer

No relationship between the monthly membership fees can be determined.

Question 3

Which of the following graphs is not a function?

Accepted Answer

D.

Answer

A.

Answer

B.

Answer

C.