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Published byKaitlyn Weeks Modified over 5 years ago

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By: Derek Mauriello, Vanessa Law, Ivan Williams

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Variable- a quantity or function that may assume any given value or set of values Isolating the y- put the y variable by itself to solve an equation Substituting to solve for y- substitute x-coordinate point to solve for the y-coordinate point Using Substitution to solve for y- two different equation to substitute

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The y-variable is accompanied by a integer on the left side In order to isolate the y- variable the y must be by itself, in order to do that the integer has to use inverse operation Since the y has a value of 2, the value will be divided on both sides Now the y is finally isolated! 2y – 7 = 6x - 1 +7 +7 2y = 6x + 6 2 2 2 y = 3x + 3 Inverse Division

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There are two equations now since there y can be cancelled out we can add the two equations, then use the inverse Now that we have x we need to substitute into an equation 6x – 7 = 2y – 1 +-5x + 4=-2y - 5 x -3= -6 +3 +3 x = - 3 6 (-3) – 7 = 2y – 1 -18 – 7 = 2y – 1 -25 = 2y – 1 +1 +1 -24 = 2y 2 2 y = -12

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So we have the x-coordinate point is 4 and we want to solve for the y-coordinate point so we substitute Then we multiply 3 and 4 which equals 12 After, add 12 and 3 which equals 15 The coordinate points would be (4, 15) y = 3x + 3 y = 3 (4) + 3 y = 12 + 3 y = 15

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Make sure what you do on 1 side of the equal sign you do the exact same thing on the other Dont forget to use the inverse to isolate the y Make sure when substituting the x-coordinate you use PEMDAS to get the right result for the y-coordinate

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http://dictionary.reference.com/ http://www.google.com/imghp?hl=en&tab=wi http://www.youtube.com/ -First Song: School Of Rock- Jack Black -Second Song: All I Do Is Solve (WSHS Math Rap Song) Original Song is All I Do Is Win by DJ Khaled

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