Matching Equations and Graphs

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Presentation transcript:

Matching Equations and Graphs 4.4

Page 183

Example 1 Match the equations to the graphs. Find at THREE points for each graph. y = 3x + 3 x + y = 3 y = 3x - 3

Example 2 Match the equations to the graphs. Find at THREE points for each graph. y = x y = 2x y = -3x

Example 3 Which graph on this grid has the equation y = 3x – 4?

Using Graphs to Estimate Values 4.5 4.4-4.5 Quiz Coming Soon!

Review

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Definition Interpolation – _________________ values that lie between 2 data points on a graph.

Example 1 How much does 8L cost? The following graph shows the relation between the cost of soda and the amount purchased. How much does 8L cost?

Definition Extrapolation – Estimating values that lie ____________ data points on a graph.

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Unit 4 Review Study Guide: Determine expressions from problems Express data in four different ways: Table, graph, words and expression For graph you must have axis labels with units, title Use expressions to solve problems Match graphs to equations Extrapolate and Interpolate Page 201: #1, 4, 8 (graph on one graph), 13, 14