8th Math STAAR Prep: Series 2 & 7 and page 4-5

Aiden recorded the number of people swimming at the neighborhood pool at various times after it opened each day for several days and made the following scatterplot with the data.

Which statement is correct regarding the relationship between the number of swimmers and the number of hours that have passed after opening each day for all of the data points?

• There is a positive linear association.

• Thereis a negative linear association.

• There is a non-linear association.

• There is no relationship between variables.

Tags

CCSS.HSS.ID.B.5

The length of Rectangle A is 7x + 11. The length of Rectangle B is 15x - 9. Given the two rectangles are congruent, what is the value of x?

Tags

CCSS.HSG.SRT.B.5

Mei wants to save additional money for her retirement. Which plan will result in the largest amount of money in 20 years?

• Starting today, save $100 per month for 20 years in an account that earns 4% interest compounded annually.

• Wait 10 years, but then save $200 per month the last 10 years in an account that earns 4% interest compounded annually.

• Starting today, save $100 per month for 20 years in an account that earns 4% annual simple interest.

• Wait 10 years, but then save $200 per month the last 10 years in an account that earns 4% annual simple interest.

Triangle TUV and its transformation to Triangle T'U'V' are shown on the coordinate grid. What transformation to Triangle TUV is represented?

• Triangle TUV has been dilated to make triangle T'U'V'.

• Triangle TUV has been reflected across the y-axis to make triangle T'U'V'.

• Triangle TUV has been rotated 90 degrees clockwise to make triangle T'U'V'.

• Triangle TUV h a s been translated to the right to make triangle T'U'V'.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A cylinder has the dimensions in centimeters as shown in the image. Which is the closest measurement of the cylinder’s lateral surface area?

• 1,005.3 cm²

• 320 cm²

• 1,407.4 cm²

• 4021.2 cm²

Gabriella wrote a set of numbers on the index cards. Which lists the numbers in order from greatest to least?

Tags

CCSS.8.NS.A.2

During a drought, the level of a lake drops 5 feet in 3 weeks. Which graph has a slope that best represents the number of feet per week the lake level drops during a drought?

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Tags

CCSS.8.EE.B.5

Aiden recorded the number of people swimming at the neighborhood pool at various timesafter it opened each day for several days and made the following scatterplot with the data.

Which statement is correct regarding the relationship between the number of swimmers and the number of hours that have passed after opening each day for all of the data points?

• Thereis a positive linear association.

• There is a negative linear association.

• There is a non-linear association.

• There is no relationship between variables.

Tags

CCSS.HSS.ID.B.5

The length of Rectangle A is 7x + 3. The length of Rectangle B is 5x - 4. Given the two Rectangles are congruent, what is the value of x?

Tags

CCSS.8.G.A.2

Mei wants to save additional money for her retirement. Which plan will result in the largest amount of money in 10 years?

• Starting today, save $200 per month for 10 years in an account that earns 6% annual simple interest.

• Wait 5 years, but then save $400 per month the last 5 years in an account that earns 6% annual simple interest.

• Starting today, save $200 per month for 10 years in an account that earns 6% interest compounded annually.

• Wait 5 years, but then save $400 per month the last 5 years in an account that earns 6% interest compounded annually.