algebra 1 ch.6 notes page 47 p47 6-7 scatter plots and equations of lines

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Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

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Calculate Slope (m) - Calculate Y-Intercept (b) Finding Equations from two points. Calculate Slope (m) - Calculate Y-Intercept (b) y = mx + b (3, 2) and (5, 8) (-4, 6) and (-2, 8)

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Page 1: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Algebra 1Ch.6 Notes Page 47P47 6-7 Scatter Plots and Equations of Lines

Page 2: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Finding Equations from two points.

(3, 2) and (5, 8)

(-4, 6) and (-2, 8)

Calculate Slope (m) - Calculate Y-Intercept (b)

y = mx + b

Page 3: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Writing Equations of Trend Lines

Two Points on the Trend Line are (14, 30) and (24, 48)

Predict the wingspan of a hawk that is 28in long.

Use data points to make a Scatter PlotDraw in a Trend Line

Use the two points to write the equation of the line.

Page 4: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Graph the data below. Draw the trend line.Write the equation of the Trend Line.Estimate the number of Calories if a food has 14g of fat.

5100

Fat (g)

6 7 10 19 20 27 36 Calories

276

260 220 338 430 550 633

Calories and Fat

Page 5: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Graphing CalculatorRegressions

Page 6: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Fat (g)

6 7 10 19 20 27 36 Calories

276

260 220 338 430 550 633

Calories and Fat

Graphing Calculator

Page 7: Algebra 1 Ch.6 Notes Page 47 P47 6-7 Scatter Plots and Equations of Lines

Club-head speed, mph (x)

100

102

103

101

105

100

99 105

Distance, yards (y)

257

264

274

266

277

263

258

275

Golf Example

Graphing Calculator