| |
| |
1. |
Use substitution to solve the system of equations given below.
8x - 4y = 16
2x - y = 4 |
| |
|
A. |
no solution |
B. |
(2, 0) |
| |
|
C. |
(0, -4) |
D. |
infinitely many solutions |
| |
|
Hint |
|
| |
2. |
Students from the local high school are selling tickets to the town's annual carnival. Adult admission is $5.00 and child admission is $2.50. Two hours after the carnival opened its first day, 440 tickets had been sold totaling $1900. How many adults and how many children entered the carnival during the first two hours it was open? |
| |
|
A. |
320 adults, 120 children |
| |
|
B. |
293 adults, 147 children |
| |
|
C. |
220 adults, 220 children |
| |
|
D. |
380 adults, 760 children |
| |
|
Hint |
|
| |
3. |
Use elimination to solve the system of equations.
-x + 2y = 18
x + 8y = -38 |
| |
|
A. |
(-5, -1) |
B. |
 |
| |
|
C. |
 |
D. |
(-22, -2) |
| |
|
Hint |
|
| |
4. |
Use elimination to solve the system of equations shown below.
2x - 4y = -5
3x + 4y = -15 |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
Use a graph to solve the system of equations.
y = x2
y = –x + 2 |
| |
|
A. |
(4, 1), (1, –2) |
B. |
(–2, 1), (1, 4) |
| |
|
C. |
(1, 1), (4, –2) |
D. |
(–2, 4), (1, 1) |
| |
|
Hint |
|
|
|