Solving Systems Of linear Equations

Solving Systems Of linear Equations: Graphing

100

y = 2x +2               y = x - 1

What is (-3,-4)

200

y=2/3 x - 3                  x+y=2

What is (3.-1)

300

y= -3x - 3              y= -3

What is (0,-3)

400

 y= 4x -10                     y = 1/3x + 1

What is (3,2)

500

y= 1/2x +5                      y= -5/2x - 1

What is (-2,4)

Solving Systems Of linear Equations: Addtion

100

4x - y = 10        2x + 3y = 12

What is (3,2)

200

3x - 5y = 9              4x + 5y =23

What is (2,3)

300

2x - 3y = 13              5x - 12y = 46

What is (-2 , 3)

400

-2x + 3y= 6                4x - 5y = -8

What is (3,4)

500

3x + y = 10                     2x – y = 5

What is (3,1)

Solve it your way

100

3x - y =4      2x - y =1

What is (3,5)

200

3x + 4y =20      3x + 2y =16

What is (4,2)

300

4x + 3y = -1       5x + 4y = 1

What is (-7, 9)

400

x - 2y = 14          x = 9 - 3y

What is (12,-1)

500

x + 4y = 12          x + 3y = 7

What is (-8,5)

Solving Systems Of linear Equations: Substitution

100

y= -2               4x - 3y = 18

What is (3,-2)

200

y = 3                  −3x − 2y = −12

What is (2,3)

300

−5x + y = −3                x - y = 3

What is (0, −3)

400

−5x + y = −2                 x= y + 2

What is (0, −2)

500

−3x + 3y = 3                   −5x + y = 13

What is (−3, −2)

What do you know?

100

Each system of equations can only be solved in one way.  True or False?

False

200

If a system of linear equations has no solution then the lines are ___________________.

parallel

300

If a system of linear equations has an infinite number of solutions then the equations must represent the ____________  ____________.

same line

400

Which method of solving is best if the equations are given in y=mx+b form?

Graphing

500

What method of solving is best when the equations are written in standard form, Ax+By=C ?

Adding or Subtracting Method