Linear Systems Matrix

What is the entry at r₃₁?

• 3

• 1

• 4

• 7

Determine whether the given matrix are identity matrix?

What is the solution?

• (1, -1)

• (-1, 1)

• (0, -2)

• (0, 1)

Which of the following are ways to solve systems of equations? 

• Graphing

• Substitution

• Elimination

• All of the above

A system of equations that does not have a unique solution but has infinitely many solutions

• matrix

• translation

• inconsistent system

• dependent system

The rectangular array of numbers used as the “opposite” to “undo” multiplication in an matrix equation

• inverse matrix

• translation

• identity matrix

• equal matrix

A process for solving systems of equations where one equation is added to another equation to “remove” one variable and allow to solve for the other. Then, the first variable is substituted to find the second

• elimination

• transformation

• dilation

• substitution

In a matrix, ad-bc, used as the denominator in a scalar for multiplication in finding the inverse matrix

• determinant

• scalar

• dilation

• translation

A method of solving a system of equations where the “value” of one variable is inserted into the other equation and solved for the single variable

• elimination

• substitution

• rotation

• reflection

A system of equations that has no solution

• inverse matrix

• reflection

• inconsistent system

• dependent system