thatsss

4. How many solutions does the system have:
12x - 8y = 20
3x - 2y = 5
Which point is a solution to
the following system?
2y – x = - 4
2y – 3x = - 8
A) (- 4, - 1) B) (3, 1) C) (0, - 3) D) (4, 3) E) None
Test Review: Systems of Equations & Inequalities
The Number of solutions

5. Test Review: Graphing Systems of Equations & Inequalities
1) Writing the system given the graph:
Write the systems of
equations shown.

6. Write the system of inequalities that produced this graph.

7. Test Review: Graphing Systems of Equations & Inequalities
2) Graphing the system
to find a solution:
Graph the system
of equations:
𝒙 + 𝒚 = 𝟔
𝒙 − 𝒚 = 𝟒
The first step is always....
y = -x + 6
y = x - 4
The solution is... (5, 1)

8. Test Review: Systems of Inequalities, Graphing
2 4
2 12
x y
x y
   

 
2
1
m  4b  
1
2
m   6b 
Dashed
Above
Solid Below
2 4x y    2 12x y 
2 2x x 
2 4y x 
x x 
2 12y x  
2 2 2
1
6
2
y x  
Draw the solution to the first line
before starting the next line!!!!!

9. Test Review: Systems Applications
There are 13 animals in the barn. Some are chickens
and some are pigs. There are a total of 40 legs.
How many of each animal are there?
The sum of three numbers is 14. The largest is 4
times the smallest. The sum of the smallest and two
times the largest is 18. Find the numbers. ( In the
form, (largest, middle, smallest number) ).

10. Test Review: Solving by Elimination or Substitution
3x – y = 4
x = 4y - 17