Download Quiz 5.1– 5.2

5.1– 5.2
Quiz
Progress Check
Match the system of linear equations with the corresponding graph. Use the
graph to estimate the solution. Check your solution. (Section 5.1)
1. y = x − 2
1
3
y = − —x + 1
y = −2x + 1
A.
B.
y
Ź1
Ź3
y = 4x + 5
C.
y
1
Ź5 Ź4 Ź3 Ź2
1
2
3. y = —x − 2
2. y = x − 3
y
3
3
2
1 x
1
Ź3 Ź2 Ź1
x
2
Ź1
3 x
Ź4
Ź2
Ź5
Ź3
Solve the system of linear equations by graphing.
4. y = 2x − 3
5. 6x + y = −2
y = −x + 9
y = −3x + 1
1
2
3
(Section 5.1)
6. 4x + 2y = 2
3x = 4 − y
Solve the system of linear equations by substitution. Check your solution.
(Section 5.2)
7. y = x − 8
y = 2x − 14
8. x = 2y + 2
2x − 5y = 1
9. x − 5y = 1
−2x + 9y = −1
10. MOVIE CLUB Members of a movie rental club pay a $15 annual membership
fee and $2 for new release movies. Nonmembers pay $3 for new release
movies. (Section 5.1)
a. Write a system of linear equations that represents
this situation.
b. When is it beneficial to have a membership?
11. NUMBER SENSE The sum of two numbers is 38. The
greater number is 8 more than the other number. Find
y
each number. Use a system of linear equations to justify
your answer. (Section 5.1)
ice
12. VOLLEYBALL The length of a sand volleyball court is twice
d
its width. The perimeter is 180 feet. Find the length and
width of the sand volleyball court. (Section 5.2)
13. MEDICAL STAFF A hospital employs a total of 77 nurses
and doctors. The ratio of nurses to doctors is 9 : 2. How
many nurses are employed at the hospital? How many
doctors are employed at the hospital? (Section 5.2)
Sections 5.1– 5.2
MSCC3_BLUE_PE_05MC.indd 215
Quiz
215
12/8/12 9:54:50 AM