Algebra 1 5-2 Complete Lesson: Direct Variation
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24 questions
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Solve It! The diagram shows how long it takes to hear thunder after you see lightning. What general rule can you use to model this situation?
Problem 1 Got It?
Problem 2 Got It?
Problem 3 Got it? Weight on the moon y varies directly with weight on Earth x. A person who weighs 100 lb on Earth weighs 16.6 lb on the moon. What is an equation that relates weight on earth x and weight on the moon y? What is the graph of this equation?
Be sure to include relevant graph detail: label axes, indicate units on both axes, and use arrows to represent end behavior, as appropriate.
Problem 4 Got It?
Vocabulary: Determine whether each statement is always, sometimes, or never true.
The ordered pair (0, 0) is a solution of the direct variation equation y = kx.
Vocabulary: Determine whether each statement is always, sometimes, or never true.
You can write a direct variation in the form below.
Vocabulary: Determine whether each statement is always, sometimes, or never true.
The constant of variation for a direct variation represented by y = kx is y/x.
Reasoning: Suppose q varies directly with p. Does this imply that p varies directly with q? Explain.
Review Lesson 5-1: Find the slope of the line that passes through the pair of points.
Review Lesson 5-1: Find the slope of the line that passes through the pair of points.
Enter only a number. If necessary, use fraction form.
Review Lesson 5-1: Find the slope of the line that passes through the pair of points.
Enter only a number. If necessary, use fraction form.
Review Lesson 1-2: Evaluate the expression for the given value of the variable.
6a + 3 for a = 2
Review Lesson 1-2: Evaluate the expression for the given value of the variable.
-2x - 5 for x = 3
Enter only a number.
Review Lesson 1-2: Evaluate the expression for the given value of the variable.
¼x + 2 for x = 16
Enter only a number.
Review Lesson 1-2: Evaluate the expression for the given value of the variable.
8 - 5n for n = 3
Enter only a number.
Vocabulary Review: Classify each formula from the image below as representing slope or not representing slope.
Formula A
Formula B
Formula C
Represents slope
Does NOT represent slope
Use Your Vocabulary: Drag the correct word from the list to complete each sentence.
directly
direct
directions
Renee gave the visitor __?__ to the museum.
The fans went __?__ to their seats.
There is a __?__ connection between the outside temperature and the number of people at the beach.
Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.
For a refresher on the Cornell note-taking system, click here.
Reflection: Math Success