Linear-Quadratic System by Substitution Method

Which equation is correctly using substitution for the system shown?

• x + 6 = -2x − 3

• y = x + 6 − 2x − 3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

a method of solving a system of equations by taking a variable out and replacing it with an expression.

• Systems by Graphing

• Systems by Substitution

• Systems by Elimination

• Systems by Drawing

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• ( 8, 2)

• ( - 8, 2)

• No Solution

• ( 8, - 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• A
• B
• C
• D

Tags

CCSS.HSA.REI.C.7

• A
• B
• C
• D

Tags

CCSS.HSA.REI.C.7

What is the best choice for solving the given system?

• Solve both equations for x.

• Plug in 4x-1 for y in the second equation.

• Plug in 4x-1 for x in the second equation.

• Plug in 2x-5 for x in the first equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using substitution Method

• ( 1, 5)

• ( 5, 1)

• No Solution

• ( - 1, - 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The first step in solving using the substitution method is __________.

• get x by itself

• get y by itself

• get either variable by itself in one equation

• add the equations together

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

A pair of equations to determine the value of 2 variables is called ?

• Paired equation

• simple equation

• quadratic equation

• simultaneous linear equation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If you were using the substitution method and found "x=0". This means there is no solution.

• True

• False

Tags

CCSS.8.EE.C.8B