substitution

Solve the system of equations by substitution.
y = -4x + 5
y =  3x - 16

• (-3, -25)
• (3,-7)
• (11, 17)
• (21, 47)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x and y using any method we've learned!
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

solve by substitution: y=3x+14
y=-4x

• y=3
• y=1
• y= - 2
• y=4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the following system?

^{y = -6x}

^{y = 48}

• infinite solutions

• (-6, 48)

• (-6, -8)

• (-8, 48)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the following system?

^{y = 8x - 9}

^{y = 7}

• (7, 14)

• (2, 7)

• (2, 14)

• (47, 7)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by substitution:
y = x + 8
y = 9x

• (1, 9)
• (-1, 7)
• (0, 8)
• (-7, -63)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for the solution to the system
y = -3x - 7
y = 2

• (0,-2)
• (-2,3)
• (-3, 2)
• (3,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

True or False? (1, 3) is a solution to the system:

y = x + 2

y = 2x + 1

• True

• False

True or False? (1, 0) is a solution to the system:

y = x - 1

y = 2x - 3

• True

• False