8th Math STAAR Prep: Series 1 & 6: page 2

The linear relationship between the value of two bank accounts and the number of months that have passed since the beginning of the year are graphed below. Which statement appears to be true regarding the information graphed above?

• Since Account A started with $800 more than Account B, the accounts were equal at month 8.

• Account A has decreased at a slower rate than Account B has increased.

• Since Accounts A and B started with different initial amounts, the balances of the two accounts were never equal.

• Accounts A and B had the same value at month 6.

A developer is subdividing land into lots to be sold as home sites. Since some customers ask how many trees a lot may have on it, the developer has recorded the number of large trees found on several different-sized lots. The data is shown here.

What is the closest estimate of large trees likely to be found on a 6 acre lot?

• 90

• 105

• 140

• 165

Which table shows y as a function of x?

• 
• 
• 
• 

Mr. Huang has already driven 150 miles and he will drive 65 miles each hour until he reaches his destination. Which equation represents the relationship between h, the number of hours Mr. Huang has driven, and m, the total number of miles he has driven?

• m = 65h - 150

• m = 65h + 150

• m = 150h + 65

• m = 150h - 65

The volume, V, of a cylinder is equal to the area of its base, B, times its height, h. lf the diameter of a cylinder is 18 feet and its height is 2.9 feet, which expression represents V in cubic meters?

• None of these

The linear relationship between the value of two bank accounts and the number of months that have passed since the beginning of the year are graphed below.

Which statement appears to be true regarding the information graphed above?

• Since Accounts A and started with different initial amounts, the balances of the two accounts were never equal.

• Accounts A and B had the same value at month 5.

• Since Account A started with $300 more than Account B, the accounts will be equal when Account A decreases $300.

• Accounts A and B had the same value at month 7.

A developer is subdividing land into tots to be sold as home sites. Since some customers ask how many trees a jot may have on it, the developer has recorded the number of large trees found on several different-sized lots. The data is shown here.

What is the closest estimate of large trees likely to be found on a 6 acre lot?

• 75

• 40

• 55

• 80

Which table does not show y as a function of x?

• 
• 
• 
• 

Mr. Huang’s shirt factory started with 700 spools of thread and has used 85 of them each hour of production. Which equation represents the relationship between r, the number of spools of thread remaining, and h, the number of hours of production?

• r = 85h + 700

• r = 700h + 85

• r = 700 - 85h

• r = 85h - 700

The volume, V, of a cylinder is equal to the area of its base, B, times its height, A. If the diameter of a cylinder is 21 feet and its height is 4.2 feet, which expression represents V in cubic meters?

• None of these.