Systems of Equations

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by substitution method
y = x + 24
y = -7x

• -3,21
• 3,21
• 2,21
• -2,0

Solve:
y= 2x
x + y = 9

• (6, 3)
• (3, 6)
• (-3, -6)
• no solution

Solve for x and y
5x + 3y = 7
y = 4

• (4,1)
• (4,-1)
• (1,4)
• (-1,4)

Tags

CCSS.HSA.REI.C.9

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

• intersecting lines
• parallel lines
• skew lines
• the same line (coinciding lines)

x - y = -2
y = -2

• (1,-2)
• (-1,-2)
• (-4,-2)
• (4,-2)