120 IntegersWrite the ordered pair corresponding to each
point graphed. Then state the quadrant in
which each point is located.132y0 x- P 8. Q 9. R
- MULTIPLE CHOICE Kendrick created a
six-week schedule for practicing the piano.
If the pattern continues, how many hours
will he practice during the sixth week?
The table shows the number of hours he
practiced in the first three weeks.
Week 123
Hours 4710A. 15 hours C. 19 hours
B. 18 hours D. 22 hoursAdd, subtract, multiply, or divide.- 12 + (-9) 12. - 3 - 4
- 7 - (-20) 14. -7(-3)
- 5(-11) 16. - 36 ÷ (-9)
- 15 + (-7) 18. 8 + (-6) + (-4)
- 9 - 7 20. - 13 + 7
- EXTENDED RESPONSE Rectangle ABCD
has vertices A(-4, -2), B(-4, 5),
and C(6, 5).
Part A Graph points A, B, and C on a
coordinate plane.
Part B Find the coordinates of point D.
Part C Explain how you found the
coordinates for point D. - WEATHER Adam is recording the change in
the outside air temperature for a science
project. At 8:00 a.m., the high temperature
was 42°F. By noon, the outside temperature
had fallen 11°F. By mid-afternoon, the
outside air temperature had fallen another
12°F and by evening, it had fallen an
additional 5°F. Write an integer that
describes the final change in temperature.
Evaluate each expression.- ⎪- 3 ⎥ 3. ⎪- 18 ⎥ - ⎪ 6 ⎥
- STOCKS A certain stock dropped 9 points
one day and gained 13 points the
following day. What was the net change in
the stock’s worth? - FREEZING POINTS The table shows the
freezing points of various chemicals.
Chemical Point (°F)Freezing
Carbon dioxide
(dry ice) -^109
Water 32
Hydrogen - 435a. What is the difference between the
freezing point of dry ice and the
freezing point of hydrogen?
b. What is the difference between
the freezing points of water and
dry ice?- DEBT Amanda owes her brother $24. If she
plans to pay him back an equal amount
from her piggy bank each day for six days,
describe the change in the amount of
money in her piggy bank each day.
Practice
Chapter Test
116_120_SGR_895130.indd 120 12/29/09 12:49 PM