If f(x) = 4x – 3, find each function value.

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Presentation transcript:

If f(x) = 4x – 3, find each function value. Bell Ringer If f(x) = 4x – 3, find each function value. f(3) f(5) f(-8) f(12)

Remember Test is on Monday, Dec. 8!!!!

Homework Check

Homework Check

Homework Check

Homework Check

Section 8.5 Constant Rate of Change and Direct Variation R drive > Key > Week 17 > Thursday > 8.5 PowerPoint File > Save As > Math > Week 17 >

Vocabulary Constant Rate of Change – The rates of change between any two data points in a linear relationship are the same or constant Direct Variation- A relationship such that as x increases in value, y increases or decreases at a constant rate Constant of Variation – A constant ratio or unit rate of a proportion Proportional Relationship – A relationship in which the ratios of related terms are equal

Constant Rate of Change

Constant Rate of Change

Constant Rate of Change

Example 1 Find a Constant Rate of Change

Example 2 Find a Constant Rate of Change

Notes

Notes

Example 3 Use Graphs to Identify Proportional Linear Relationships

Example 4 Use Graphs to Identify Proportional Linear Relationships

Notes

Notes

Example 5 Use Direct Variation to Solve Problems

Example 5 Continued Use Direct Variation to Solve Problems

Example 6 Use Direct Variation to Solve Problems

Notes

Homework Section 8.5 #1-8

Homework Section 8.5 #1-8

Homework Section 8.5 #1-8

Homework Section 8.5 #1-8