Algebra 2 2-2 Direct Variation
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Last updated almost 7 years ago
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Problem 1 Got It?
Problem 1 Got It?
Problem 2 Got It?
Problem 2 Got It?
Problem 3 Got It?
Problem 4 Got It? The number of Calories varies directly with the mass of cheese. If 50 grams of cheese contain 200 Calories, how many Calories are in 70 grams of cheese?
Problem 4 Got It? Reasoning: If y² varies directly with x², does that mean y must vary directly with x?
Problem 4 Got It? Reasoning: Explain your response to the previous item.
Problem 5 Got It? Graph each direct variation equation on the canvas.
Vocabulary: Explain what it means for two variables to be directly related?
Example: Give an example of a function that represents a direct variation.
Review Lesson 2-1: Identify the graph of each relation.
{(0, 1,), (1, -3), (-2, -3), (3, -3)}
{(4, 0), (7, 0), (4, -1), (7, -1)}
{(1, 7), (2, 8), (3, 9), (4, 10)}
Review Lesson 1-3: Evaluate the expression for x = -2.
Respond with only a number. Use decimal form if necessary.
Review Lesson 1-3: Evaluate the expression for x = 0.
Respond with only a number. Use decimal form if necessary.
Review Lesson 1-3: Evaluate the expression for x = 1.
Respond with only a number. Use decimal form if necessary.
Review Lesson 1-3: Evaluate the expression for x = 4.
Respond with only a number. Use decimal form if necessary.
Vocabulary Review: Identify the ratio that is NOT equal to the other three.
Not equal to the other three ratios
Vocabulary Review: Match each proportion with its solution.
x = 2
x = 4
x = 6
x = 10/7
Use Your Vocabulary: Complete each sentence on the right with the correct word from the left.
directly
direct
directions
Thomas gave the visitor __?__ to the stadium.
The fans went __?__ to their seats.
There was a __?__ connection between the team's scoring and the fans' cheering.
Reflection: Math Success
Solve It! You are building a roof. You mark off four equal intervals from point A to point B. Then you place vertical posts as shown in the diagram. What are the heights of the four vertical posts? Select all that apply.