Using Cramer's Rule (9.8.1)

Question 1

• Cramer’s rule states that determinants can be used to solve linear systems of equations so long as the number of variables equals the number of equations.

Answer 1

• Cramer’s rule states that determinants can be used to solve linear systems of equations so long as the number of variables equals the number of equations.

Question 2

• Solving for x means using the determinant for x, Dx, divided by the determinant of the coefficients.

Answer 2

• Solving for x means using the determinant for x, Dx, divided by the determinant of the coefficients.

Question 3

• Solving for y means using the determinant for y, Dy, divided by the determinant of the coefficients.

Answer 3

• Solving for y means using the determinant for y, Dy, divided by the determinant of the coefficients.