Systems of Equations and Inequalities Review

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

• invisible

• solid

• dashed

A system of equations that looks like this has ....

• infinite solutions

• no solution

• one solution 

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 using any method:
3x-7y=10
12x+14y=16

• (2,-.57)

• (2,-.75)

• (.57,-2)

• (.75,-2)

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

Is (3,2) a solution to
3x-4y=1
x-y=0

• yes

• no

Solve the following system:
A farmer is in his field and knows he has 13 animals.  His animals are made up of chickens and cows.  The farmer can see that he has 34 legs in all but needs to know how many of each animal he has. 

• 4 cows, 9 chickens 

• 4 cows, 2 chickens

• 9 cows, 4 chickens

• 9 cows, 2 chickens 

What is the solution to the system?

• (-1, 4)

• (3, 0)

• (4, 1)

• (0, -1)