Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

    
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

776,416 users

please help!

0 votes
Write the system of equations as a matrix equation Then solve the system, if possible, by using a matrix equation. If not possible, classify the system.
2x+6y=-36
2x+6y=-29
asked Mar 18, 2014 in ALGEBRA 2 by dkinz Apprentice

1 Answer

0 votes

The system of equations are image.

Write the system of equations into the matrix form : image, where A is coefficient matrix and X is variable matrix and B is constant matrix.

image

Place the coefficients of the equations and the constant terms and these are separated by dashed line into a matrix that is augmented matrix.

The augmented matrix is image.

image

To make the first element in the first () row a 1, multiply the first row () by image.

image

To make the first element in the second () row a 0, multiply the first row () by negative 2 and add the result to row 2 ().

image

The second row contain zero elements that means there is no variables.

The statement 0 = 7 is false, so the system equation has no solutions.

 

answered Mar 25, 2014 by rob Pupil

Related questions

...