Understanding and generating non-linear equations in two or more variables

The equation x = 7 in two variables can be written as ____

• 1.x + 1 .y = 7

• 1.x + 0.y = 7

• 0.x + 1. y = 7

• 0.x + 0.y = 7

A system of linear equations is

• three linear equations with the same variables

• two or more linear equations with the same variables

• two or more linear equations with different variables

• one linear equations with one variable

What is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

• matrix

• table

• graph

• equation

What is the solution to the 4x5 Matrix?

• ( 3, 4, 9, 6 )

• ( 3, 4, 9, -6 )

• ( -6, 9, 4, 3 )

• ( 6, 9, 4, 3 )

The equation x = 7, in two variables, can be written as

• 1. x + 1. y = 7

• 1. X + 0. y = 7

• 0. x + 1. y = 7

• 0.x + 0. Y = 7

What is the highlighted section?

• Equal sign

• Coefficients

• Constants

• Ones

• Zeros

Which equation is represented by the algebra tiles in the picture shown?

• -4x + 7 = 2x - 5

• 7 + 4x = 2x + 5

• 4x + 7 = -2x + 5

• -4x - 7 = 2x + 5

What is a
Coefficient Matrix?

• A matrix that contains only the coefficients of a system of equations.
• A square matrix that, when multiplied by another matrix, equals that same matrix. If A is any n X n matrix and I is the n X n identity matrix, then A ⋅ I = A and I ⋅ A  =  A.
• Two n X n matrices whose product is the identity matrix.
• A matrix that contains the constants of a system.

A matrix derived from a system of linear equations is the _____ _____ of the system.

• augmented matrix
• constant matrix
• linear matrix
• coefficient matrix

How do you write a pair of coordinates?

• (X,X)

• (Y,X)

• (X,Y)

• (Y,Y)