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Alg 2 - Chapter 4 Jeopardy Matrix Operations Multiplying Matrices Determinants, Area of Triangle & Cramer's Rule Identity and Inverse Matrices Solving Systems Using Inverse Matrices 10 20 30 40 50

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10 points

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10 points - Answer

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20 points Perform the indicated operation.

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20 points - Answer Perform the indicated operation.

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30 points Perform the indicated operation.

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30 points - Answer Perform the indicated operation.

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40 points Solve the matrix equation for x and y.

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40 points - Answer Solve the matrix equation for x and y.

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50 points Solve the matrix equation for x and y.

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50 points - Answer Solve the matrix equation for x and y.

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10 points

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10 points - Answer

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20 points Perform the indicated operation.

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20 points - Answer Perform the indicated operation.

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30 points Perform the indicated operation.

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30 points - Answer Perform the indicated operation.

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40 points Perform the indicated operation.

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40 points - Answer Perform the indicated operation.

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50 points Perform the indicated operation.

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50 points - Answer Perform the indicated operation.

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10 points NO CALCULATOR!

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10 points - Answer NO CALCULATOR!

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20 points Evaluate the determinant of the matrix. NO CALCULATOR!

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20 points - Answer Evaluate the determinant of the matrix. NO CALCULATOR!

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30 points Evaluate the determinant of the matrix. NO CALCULATOR!

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30 points - Answer Evaluate the determinant of the matrix. NO CALCULATOR!

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40 points Find the area of the triangle with the given vertices. NO CALCULATOR!

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40 points - Answer Find the area of the triangle with the given vertices. NO CALCULATOR!

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50 points Use Cramer's rule to solve the linear system. Show what you are entering in your calculator. You MAY use a CALCULATOR!

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50 points - Answer Use Cramer's rule to solve the linear system. Show what you are entering in your calculator. You MAY use a CALCULATOR!

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10 points Write the identity 3x3 matrix

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10 points - Answer Write the identity 3x3 matrix

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20 points NO CALCULATOR!

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20 points - Answer

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30 points Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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30 points - Answer Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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40 points Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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40 points - Answer Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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50 points Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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50 points - Answer Find the inverse of the matrix. SHOW WORK! NO CALCULATOR!

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10 points Solve the matrix equation. Show what you are entering in your calculator. You MAY use a CALCULATOR!

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10 points - Answer Solve the matrix equation.Show what you are entering in your calculator. You MAY use a CALCULATOR!

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20 points Use an inverse matrix to solve the linear system. 3x – 7y = -16 -2x + 4y = 8 You MAY use a CALCULATOR!

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20 points - Answer Use an inverse matrix to solve the linear system 3x – 7y = -16 -2x + 4y = 8 You MAY use a CALCULATOR!

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30 points Use an inverse matrix to solve the linear system. 2x + 3y = -8 x + 2y = -3 You MAY use a CALCULATOR!

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30 points - Answer Use an inverse matrix to solve the linear system. 2x + 3y = -8 x + 2y = -3 You MAY use a CALCULATOR!

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40 points Skating Party - Your planning a birthday party for your younger brother at a skating rink. The cost of admission is $3.50 per adult and $2.25 per child, and there is a limit of 20 people. You have $50 to spend. Use an inverse matrix to determine how many adults and how many children you can invite.

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40 points - Answer Skating Party - Your planning a birthday party for your younger brother at a skating rink. The cost of admission is $3.50 per adult and $2.25 per child, and there is a limit of 20 people. You have $50 to spend. Use an inverse matrix to determine how many adults and how many children you can invite.

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50 points Stock Investment – You have $9000 to invest in three Internet companies listed on the stock market. You expect the annual returns for companies A, B, and C to be 10%, 9%, and 6%, respectively. You want the combined investment in companies B and C to be twice that of company A. How much should you invest in each company to obtain an average return of 8%?

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50 points - Answer Stock Investment – You have $9000 to invest in three Internet companies listed on the stock market. You expect the annual returns for companies A, B, and C to be 10%, 9%, and 6%, respectively. You want the combined investment in companies B and C to be twice that of company A. How much should you invest in each company to obtain an average return of 8%?

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