FB 18: Systems of Equations and Inequalities

An inequality using a > or a < has a ___________ line

• invisible
• solid
• dashed

Is (3,-4) a solution to this system?

• yes
• no

Pick the ordered pair that is NOT a solution

• (0,0)
• (1,-1)
• (2,0)
• (4,-4)

Solve the following system of equations:
2x+3y=17
y=4x+1

• (-1,-3)
• (1,5)
• (1,3)
• (2,4)

Solve using any method:
2x+3y=10
-2x+y=14

• (6,-4)
• (-4,6)
• (4,6)
• (6,4)

When you come across a solution that reads 3=4, your answer would be.....

• no solution
• all real numbers
• 3 pizzas = 4 hungry hungry hippos
• one solution

When you come across a solution that reads 4=4, your answer is...

• no solution 
• all real numbers
• 4

The sum of 2 numbers is 33.  The smaller number is 8 less than 7 times lager number.
Let x= the smaller number and y=the larger number. 
Pick which system of equations follows this problem.

• x=8-7y
  x+y=33
• x=7y-8
  x+y=33
• 7x+8y=33
  x+y=n
• 2+x=33
  x=8y-7

Pick the following inequality that relates to this graph:

• y<-2x+2
• y≤-2x+2
• y>-2x+2
• y≥-2x+2

An inequality using a ≤ or ≥ is graphed using a 

• solid line
• dashed line
• invisible line
• no line!