1. Assignment:
1­­>Set 41 (odds) ­ Due Wednesday (12/7)
2­­>Test #5 signed??
Agenda:
• Collect signed tests?
• Warm­Up
• Daily Lesson
• Timed Test (+)
• Collect Set 40 (all)
• Work Time
1

2. Lesson 41 Warm­Up:
1) Find the area of a circle with a diameter of 6m.
[Use 3.14 for pi]
2) Find the circumference of a circle with a
diameter of 6m. [Use 3.14 for pi]
3) Write 4,137,580,000 in scientific notation.
4) Simplify: (­2) ­ (­6) + (­4)
5) Simplify: (­2)(­6)
­4
2

3. Investigation #4:
*geometric solids ­ a 3­D geometric figure
*faces ­ a flat surface of a geometric solid
*edges ­ a line segment formed where 2 faces of a geometric solid
intersect
*vertex (vertices) ­ a point where 2 edges of a geometric solid meet
*polyhedron ­ a geometric solid whose faces are polygons
*prism ­ a polyhedron with 2 congruent parallel bases
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4. *pyramid ­ a type of polyhedron with lateral surfaces that narrow to a
point
*cylinder ­ a geometric solid with 2 parallel bases that are circles
*cone ­ a geometric solid with one circular base that connects to a point
*sphere ­ a smooth curved solid, that has every point the same distance
from its center
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5. Lesson 41:
*function – a mathematical rule that identifies a
relationship between 2 sets of numbers; for each input
there is only one output
*linear function – if all the input­output pairs of a function
fall on a line
*For a graph to be proportional, it must be:
­linear,
­­pass through (0, 0),
­­­and rises to the right
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6. Examples ­ Lesson 41:
For the following functions, make a function table and use the values to
graph the equation. Last, determine if the function is proportional or not.
A) y = 3x
x y
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7. B) y = 2x ­ 1
x y
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8. C) y = 1/2x + 1
x y
8

9. D) y = ­2x
x y
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10. E) Does x = 8 and y = 3 satisfy the function y = 1/4x + 1?
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