PreAP Algebra II
Module 5 Extra Credit
Name_____________________________
Date________________ Period _______
Solve the following on your own sheet of paper and attach to this worksheet.
1. Electrical Circuits: Find the electric currents shown by solving the matrix equation (obtained by using
Kirchhoff’s Law) arising from this circuit:
Note: Kirchhoff’s Law states that the algebraic sum of all currents meeting at a point (node) is zero.
so
I1 + I2 + I3 = 0
-2I1 + 3I2 + (-24) = 0
- 3I2 + 6I3 = 0
PreAP Algebra II
Module 5 Extra Credit
Rewrite as a 3 x 4 matrix and solve where you
have a Gaussian matrix. This is where you
only have 1’s and 0’s in the coefficient
columns of your matrix.
Name_____________________________
Date________________ Period _______
Solve the following on your own sheet of paper and attach to this worksheet.
1. Electrical Circuits: Find the electric currents shown by solving the matrix equation (obtained by using
Kirchhoff’s Law) arising from this circuit:
Note: Kirchhoff’s Law states that the algebraic sum of all currents meeting at a point (node) is zero.
so
I1 + I2 + I3 = 0
-2I1 + 3I2 + (-24) = 0
- 3I2 + 6I3 = 0
Rewrite as a 3 x 4 matrix and solve where you
have a Gaussian matrix. This is where you
only have 1’s and 0’s in the coefficient
columns of your matrix.