Solve the system using Cramer's rule and a graphing calculator. (Round to two decimal places.)
--8.18x - 3.36y = 9 -0.06x - 8.09y = 5
A) {(0.85, 0.61)}
B) {(-0.61, -0.85)}
C) {(-0.85, -0.61)}
D) {(0.61, -0.85)}

Question

Quizplus · Accepted Answer

Cramer's rule involves calculating determinants. The determinant of the coefficient matrix is non-zero, so the system has a unique solution. Solving using Cramer's rule gives x = -0.85 and y = -0.61.

Solve the System Using Cramer's Rule and a Graphing Calculator