Substitution
Elimination
Linear Inequalities
Random Review
100
Solve this system via substitution.
y = 4x – 8
y = 2x + 10
(9,28)
100
Solve via elimination.
-2x + 15y = -32
7x – 5y = 17
(1,-2)
100
Graph y < 2/5 x – 3.
100
Do (1,3), (4,2), and (-2,4) lie on the same line?
yes
200
Solve this system via substitution.
m = 4n + 11
-6n + 8m = 36
(3,-2)
200
Solve via elimination.
15x + 3y = 9
10x + 7y = -4
(1,-2)
200
Explain how you can tell from a linear inequality whether you will shade above or below the graph of the boundary line.
...
200
B
300
There are 1170 students at Peart High School. The ratio of boys to girls is 23:22.
a) Create a system of equations.
b) Solve the system to determine how many boys and girls attend the school.
572 girls and 598 boys
300
Paul and Jack go to Taco Bell. Jack orders 3 burritos and 4 tacos for $11.33. Paul orders 9 burritos and 5 tacos for $23.56.
a) Create a system of equations.
b) How much do burritos and tacos cost?
$1.79 for a burrito and $1.49 for a taco.
300
Which region represents the solution to the system?
y ≥ 1/2 x + 1
4x + 2y ≤ 8
IV
300
Find x.
56