MAT_1143_feb_9 - February 9 2011 Click to edit Master subtitle style Sections 2.5 and 2.6 What if Rate of Change is Constant If the average rate of

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Click to edit Master subtitle style February 9, 2011 Sections 2.5 and 2.6
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What if Rate of Change is Constant? If the average rate of change is ALWAYS the same We drop the average Say rate of change Have a line of that slope Obj105
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Start with Info Might have a phone plan Pay $20 a month $.10 per minute for each call What is the cost if we call for 20 minutes? A: $22 B: $40 C: $18 D: $21
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Start with Info Might have a phone plan Pay $20 a month $.10 per minute for each call How would we write an equation for this? Cost = 20 + .10*Minute From verbal description (and information there) can come up with equation
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In General y = b + mx Output = initial value + slope * Input Initial value is the y-intercept (0, init value) This form is useful as it is most like the forms that will come later More often written is as y = mx+b Called slope-intercept form of the equation From the form of the equation, we can quickly read off some information
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MAT_1143_feb_9 - February 9 2011 Click to edit Master subtitle style Sections 2.5 and 2.6 What if Rate of Change is Constant If the average rate of

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