Systems w/ Substitution

What is the first step in solving a system by Substitution?

• Make sure both equations are in standard form.
• Make sure at least one equation is solved for one variable.
• Make sure both equations are in slope-intercept form.
• Make sure both equations can be solved.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When solving a system of equations algebraically, which statement results in infinite solutions?

• 4 = 7

• 2 = 2

• -3 = 3

• all of the above

Tags

CCSS.8.EE.C.8B

When solving a system of equations algebraically, which statement results in no solution?

• 4 = 7

• -2 = 2

• -3 = 3

• all of the above

Tags

CCSS.8.EE.C.8B

What is the solution to the following system:

^{y = 5x}

^{3x + y = 24}

• ^{(15, 3)}

• ^{(3, 5)}

• ^{(3, 15)}

• ^{(5, 3)}

Tags

CCSS.HSA.REI.C.7

What is the solution to the following system?

^{x - y = 6}

^{x = 11}

• (11, 5)

• (55, 5)

• (11, 11)

• (5, 55)

Tags

CCSS.HSA.REI.C.7

What is the solution to the following system?

^{2x + 7y = 3}

^{y = -1}

• (5, -1)

• (5, -5)

• ^{(5/7, -1)}

• (-1, 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the following system?

^{y = 5}

^{-3x + 4y = 8}

• (5, 7)

• (4, 5)

• (-3, 5)

• (-4, -20)

Tags

CCSS.HSA.REI.C.9

Solve this system of equations. 
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What are systems of linear equations?

• a set of two or more linear equations in the same variables
• a polynomial with three terms
• set of two or more linear inequalities in the same variables

Tags

TEKS.MATH.A.5C

2 or more linear equations with the same set of variables

• System
• System of Equations
• Linear Equations
• Quadratic Equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6