Systems Of Linear Equations Worksheets With Answer Key Page 37
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Chapter Test
Test Practice
Solve the system of linear equations by graphing.
1
1. y = 4 − x
2. y =
x + 10
3. y + x = 0
—
2
y = x − 4
y = 4x − 4
3y + 6x = − 9
Solve the system of linear equations by substitution. Check your solution.
4. − 3x + y = 2
5. x + y = 20
6. x − y = 3
− x + y − 4 = 0
y = 2x − 1
x + 2y = − 6
Solve the system of linear equations by elimination. Check your solution.
7. 2x + y = 3
8. x + y = 12
9. − 2x + y + 3 = 0
x − y = 3
3x = 2y + 6
3x + 4y = − 1
Without graphing, determine whether the system of linear equations has
one solution, infi nitely many solutions, or no solution. Explain your reasoning.
10. y = 4x + 8
11. 2y = 16x − 2
12. y = − 3x + 2
y = 5x + 1
y = 8x − 1
6x + 2y = 10
Use a graph to solve the equation. Check your solution.
1
3
x − 4 =
x + 2
14. 8x − 14 = − 2x − 4
—
13.
—
4
4
15.
FRUIT
The price of 2 pears and 6 apples is $14. The price
of 3 pears and 9 apples is $21. Can you determine the unit
prices for pears and apples? Explain.
16.
BOUQUET
A bouquet of lilies and tulips has 12 fl owers.
Lilies cost $3 each, and tulips cost $2 each. The bouquet
costs $32. Write and solve a system of linear equations to
fi nd the number of lilies and tulips in the bouquet.
17.
DINNER
How much does
it cost for 2 specials and
2 glasses of milk?
236
Chapter 5
Systems of Linear Equations
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