A1 Unit 3 Review of Systems

Check to see if (-2,1) is a solution to the following system:
x+2y=0
4x+3y=1

• yes
• no

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 the following system of equations using SUBSTITUTION: 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)

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 models this situation.

Pick the following inequality that relates to this graph:

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

You have a total of 17 coins.  All of your coins are nickels and dimes.  The total value of the coins is $1.35.  Which system of equations represents this situation?

• n+d=17
  .05n+.10d=1.35
• .05n+.10d=17
  n+d=1.35
• .25n+.10d=1.35
  n+d=17