U5D4 Magic Matrix April 14

The area of the triangle is square units.

Find the area of a triangle with vertices (3, 6), (8, -1), and (-4, 5).

The area of the triangle is square units.

The solution to the system is where these two lines intersect. These two lines cross at the coordinate ().

Use Cramer's Rule to solve the linear system.

The solution to the system is ().

The solution to the system is where these two lines intersect. These two lines cross at the coordinate () .

Use Cramer's Rule to solve the linear system.

The solution to the system is ().