Revised Standards Practice Items Algebra 2

A ball takes 5.2 seconds to roll from the top of a ramp to the bottom. The ball’s initial speed is 0 meters per second, and its speed at the bottom of the ramp is 1.4 meters per second.

Which axes show the most appropriate units and scale to graph the ball’s speed as a function of time?

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The prices of items at two different supermarkets are shown. Toilet paper at Store A costs $4.99 and at Store B costs $6.99. Toothpaste at Store A costs $2.99 and at Store B costs $3.25. The data for this can be represented by the following matrix:

Which statement is true about the matrix?

• The second column represents the price of toothpaste at both supermarkets.

• The first row represents the price of toilet paper at both supermarkets.

• The second row represents the cost of toothpaste at Store A.

• The first column represents the items at Store B.

The coordinates of a triangle’s vertices are given in the matrix 𝑇.

The matrix 2T represents the coordinates of the triangle’s vertices after a transformation. Which matrix is 2T?

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Lisa, Jenny, and Kyra kept track of the number of miles they ran on Saturday and Sunday. Their data are represented by the matrices 𝑀 and 𝑁.

Which matrix represents (M + N), the total number of miles each person ran?

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What is the product of the given matrices that represents the total cost of each road in thousands of dollars?

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What is the product CP?

• [2 3] [5 1]

• [3 2] [5 1]

• [2 3] [1 5]

• [3 2] [1 5]

A TV station executive is planning the new lineup for next season's shows. On Monday nights, there will be 3 sitcoms and 2 dramas, for a total of 155 minutes of programming, not counting commercials. On Tuesday nights, she has scheduled 1 sitcom, for a total of 25 minutes of non-commercial programming. All sitcoms have the same length, and all dramas have the same length. How long is each type of show?

• Sitcoms are 25 minutes long, and dramas are 40 minutes long.

• Sitcoms are 40 minutes long, and dramas are 25 minutes long.

• Sitcoms are 25 minutes long, and dramas are 80 minutes long.

• Sitcoms are 80 minutes long, and dramas are 25 minutes long.

• The account balance will decrease 0.04% each year.

• The account balance will increase 0.04% each year.

• The account balance will decrease 4% each year.

• The account balance will increase 4% each year.

• 30x

• 90 – x

• 100 + 30x

• x(90 – x)

The expression (x + 2) is a factor of some polynomial p(x). What else must be true about p(x)?

• A. p(−2) = 0

• B. p(0) = −2

• C. p(0) = 2

• D. p(2) = 0