4/8/2014
Tuesday, 4/8
# the right side of your notecard from
1-4
You Need:
Normal math stuff
Volunteer to pass back notecards?
Four function (blue) calculators
Today will be practice for tomorrow’s
accuracy grade.
Textbook, hopefully
Pen for grading if you have one
FCAT Reference sheet from the front counter or your notebook
5th Period On your desk to be checked during bellwork:
#46 Pg. 495 #1-12
1.
1.
98 fl oz
2.
2.
3.
3.
4.
4.
20.5 ft or ≈ 6.83yd
Tunnel A is 1600m, so it is
860 meters longer.
Monroe.
Eleanor
only ran
6,300
meters
47
8.1 Inverse Variation
LG: I will be able to recognize and use
inverse, joint, and combined
variation.
1
4/8/2014
Remember direct variation?
If y varies directly with x, then = where k is the
constant of variation.
Inverse Variation
If y varies inversely with x, then = where k is the
constant of variation. ≠ 0.
To find K in each situation:
If y varies directly with x, then = where k is the
constant of variation.
Direct Variation: = If y varies inversely with x, then = where k is the
constant of variation. ≠ 0.
Inverse Variation: = Direct Variation: = Inverse Variation: = 2
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3
4/8/2014
Test to see if direct or inverse make more sense.
=
=
255
Inverse. What should our k be?
=
=
255
255
30
4
4/8/2014
=
255
30
=
= 8.5
=
255
255
30
= 8.5
9
.
! , #
$%.
5
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6
4/8/2014
Pg. 503 #6,7,9,12,13,19-23,25-29,
40,63
7