moving straight ahead 2.3

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Agenda Tuesday, Nov. 10 homework   4    MSA p. 35 # 7, 10 - 13, 16, 22 - 28 correct homework Daily Scribe? - Emily Problem 2.3 Comparing Costs

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lesson on y=mx + b form of linear equations

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Page 1: Moving Straight Ahead 2.3

Agenda Tuesday, Nov. 10

homework   4    MSA p. 35 # 7, 10 ­ 13, 16, 22 ­ 28

correct homework

Daily Scribe? ­ Emily

Problem 2.3  Comparing Costs

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y-intercept: the point where the line crosses the y-axis on a graph or when x = 0 in a table.

coefficient:the number that multiplies a variable in an equation

y = mx + b

Examples: Henri's equation is d = 1d + 45the coefficient(m) of x =1 and the y-intercept (b) = 45

Linear Equations

(0, b) is the y intercept

y = mx + b

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For part B:Write an equation that represents the costs of the new company.

What information do the variables and numbers represent?

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