Algebra Unit 2 Review

When should the substitution method be used to solve a system of equations?

• When one equation can be solved for one variable in terms of the other variable.

• When the system of equations has exactly one solution.

• When the system of equations has infinitely many solutions.

• When the system of equations has no solution.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the substitution method for solving a system of equations?

• The substitution method for solving a system of equations involves graphing the equations and finding their intersection point.

• The substitution method for solving a system of equations involves solving both equations simultaneously.

• The substitution method for solving a system of equations involves multiplying both equations by the same constant and then adding them together.

• The substitution method for solving a system of equations involves solving one equation for one variable and then substituting that expression into the other equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When should the elimination method be used to solve a system of equations?

• When the coefficients of one variable in both equations are the same.

• When the coefficients of one variable in both equations are additive inverses of each other.

• When the coefficients of one variable in both equations are positive.

• When the coefficients of one variable in both equations are equal to zero.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method would be most efficient: 2x + 3y = 8 y = -2x +5

• substitution

• equal values

• elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• substitution

• elimination

• equal values

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

y = 2x + 5 and y = 2x - 3

• 1 solution

• no solution

• infinitely many solutions

Tags

CCSS.8.EE.C.8B

y = -x + 2 and y = -x + 2

• solution

• no solutions

• infinitely many solutions

Tags

CCSS.8.EE.C.8B

Which color is the solution region to this system of inequaliteis?

• White

• Blue

• Purple

• Red

Tags

CCSS.HSA.REI.D.12

What is the slope-intercept form of a line?

• Ax + By = C

• y = mx + b

• y - y1 = m(x - x1)

• y = Ax + By

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does "b" represent in y=mx+b?

• y-intercept

• slope

• the origin

• x-intercept

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3