Direct Variation & Proportion
Homework:
Write a word problem that requires equation of direct variation and proportion to solve the problem. Solve the problem and graph it.
Assignments:
- Do Now
- Focus Questions
- Notes
Solve each Equation:
1. 27 = c (-4)
2. -8 = (3/4)z
3. (k/4) = -20
4. (n/2) = (5/8)
5. 2(4y + 1) = 3y
Today's Focus Questions:
1. Suppose that y varies directly as x and y=18 when x = 9. Describe how you would find an equation of direct variation that relates these two variables.
2. When are linear equations NOT direct variations? How do their graphs differ from those of direct variations.
3. How is direct variation equations related to proportions?
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GEOMETRY
Defining Angles
Homework:
Draw an example of each angle (7 total). Label each type of angles and any symbols to represent congruency and measurements.
Assignments:
- Do Now
- Focus Questions
- Investigation: Defining Angles
Using a protractor and straightedge construct:
1. A 70 degrees angle and name it.
2. A triangle so that one angle is 110 degrees
3. An angle that has an angle bisector. Label each actual angle measurement.
4. Write down what you know from the markings in the figure
Today's Focus Questions:
1. Compare and contrast a pair of complementary angles and a pair of supplementary angles.
2. Compare and contrast pair of vertical angles and linear pair of angles.
3. What is the difference between supplementary pair of angles and a linear pair of angles?
