Unit 7 linear project.

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Objective - To graph linear equations using the slope and y-intercept.

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Presentation transcript:

Unit 7 linear project

data URL: www.infoplease.com/ipa/A077473.html

Our graph with trend line

Our equation

Excel

Intercepts Y-Intercept= -746.8, this intercept would mean that the minimum wage would be $-746.8 when the year is 0. This is not realistic because you cannot earn a negative amount of money. X-Intercept= 1991.47, this means that the year would be 1991.47 for the minimum wage amount to be $0. This isn’t very realistic because people were earning minimum wage in 1991.

prediction Using the equation, we predict that in the year 2080, the minimum wage will be $33. That would be a lot! Our R-squared value was pretty high, so it might happen!