Solving a System with Substitution

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)
• (3, 0)
• (-5, -2)
• (10 , -9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

• (10, 3)

• (6, 3)

• (15, 3)

• No solution

• Infinite Solution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (5, -3)

• (3, 5)

• (-5, -3)

• (-3, -5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (2, -3)

• (3, 2)

• (-3, -2)

• (-2, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (2, -3)

• (3, 2)

• (-3, -2)

• (-2, -3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• same lines

Tags

CCSS.8.EE.C.8A

y = 3x + 2
y - 3x = 2

• no solution
• infinite solutions
• (0 , 0)
• (2 , 2)

Tags

CCSS.8.EE.C.8B

If a system of linear equations has infinitely many solutions, what does this mean about the two lines? 

• Intersecting lines
• Same line
• Parallel lines

Tags

CCSS.8.EE.C.8A

Solve the following systems of equations using substitution:

2x + 8y = 20

y = 2

• (2, 2)

• (-2, 2)

• (2, -2)

• (0, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

• (-2, -1)
• (1, -2)
• (-2, 1)
• (-1, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6