Solving systems by substitution

x = 4

y = x + 8

What is the solution?

• (12,4)

• (4,4)

• (4,12)

• (-4,-4)

x = 2

y = x - 2

What is the Solution?

• (2,0)

• (0,2)

• No Solution

• Many Solution

x = 3

y=4x

What is the solution

• (3,4)

• (4,3)

• (3,12)

• (12,3)

y = -3

y = x + 5

What is the solution?

• (-8,-3)

• (-3,-8)

• (-3,8)

• (8,-3)

x = 3

y = 2x + 5

• (11,3)

• (3,11)

• No Solution

• (3,10)

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions

Where do these two lines intersect?

• No solution
• (-2, 3)
• (3, -2)
• (2, 3)

Solve the following system:

 $y=5x-7$  

 $-3x-2y=-12$  

•  $\left(2,\ 3\right)$  

•  $\left(3,\ 2\right)$  

•  $\left(-2,\ -3\right)$  

•  $\left(-2,\ 3\right)$  

Solve the following system:

 $y=5x-2$  

 $-3x+6y=-12$  

•  $\left(0,\ -2\right)$  

•  $\left(0,\ 2\right)$  

•  $\left(-2,\ 0\right)$  

•  $\left(2,\ 0\right)$