8th Grade Math -- Lesson 11 Vocabulary

A symbol, or letter, that represents an unknown number or quantity

• Coefficient

• Term

• Expression

• Variable

Tags

CCSS.6.EE.A.2B

Algebraic

• Relating to or presented by a graph

• Two linear equations with two variables

• Relating to or involving algebra

• Using a graph to find the intersection(s) of two equations

Tags

CCSS.8.EE.C.8B

Which method involves adding or subtracting equations in order to solve a system of linear equations?

• Graphical

• Elimination

• Substitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which step is in BOTH the substitution and the elimination method?

• Solve either of the equations for either variable

• Add or subtract the equations together to eliminate a variable

• Substitute the one variable for its equivalent expression that you found in the first step

• Check the solution.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is not a system of two linear equations?

• 2x + 4y = 0

  3x + 7y = 0

• n + m = 54

  2n - 7 = 3m

• a + b + c = 3

  a + b - c = 1

  a - b + c = 2

Tags

CCSS.8.EE.C.8C

When should you use the elimination method for solving linear systems of equations?

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method involves graphing lines to find their intersection?

• Graphical

• Substitution

• Elimination

Tags

CCSS.8.EE.C.8B

(-a)*(-b)

• ab

• -ab

• b(-a)

• -a - b

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

• -7

• -12

• 7

• 12

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Tags

CCSS.7.EE.A.1