1. Learning Log: On Desk: (4, 7) and (27, 39)
Math CC7/8 – Be Prepared
Learning Log:
HW: p. 69, #1-2, 13, 15-20, 39
Parent Signatures?
Partner Quiz – Absent?
Touch base with group and turn in!!
On Desk:
Pencil
Calculator
Math Journal
TwMM Learning Log
Find the equation of the line that passes through the given points.
(4, 7) and (27, 39)

2. Tasks for Today Warm Up – What do you notice? What do you wonder?
Lesson 3.1 – inverse variation

3. What do you notice? What do you Wonder?

7. Labsheet 3.1

9. w = l = lw = 24 w l 24 24 As length increases, width decreases.
The graph also decreases at a decreasing rate, so it is curved.
The relationship is NOT linear!
w = 24 l
l = 24 w
lw = 24 or or

10. w = 32 l
l = 32 w
lw = 32 or or

11. Write the widths as
decimals to the nearest
hundredth.

12. w = A l
Both functions can be written in the form of
where A is a fixed number.
The graphs are both decreasing curves.
The tables have patterns of w (or l) values that decrease rapidly at first and then more gradually.
Roseville’s lots could be in the form of
w =
21, 780 l
As length increases, the width decreases rapidly at first but then more slowly, never actually getting to 0.