Big Dave's Phat Algebra II Page
 

                            The beginning of the equation -->  6x + -9x + -4 = -2x + -2
                                          add the x's together -->      1) -3x + -4 = -2x + -2
                                          and 3x to both sides -->      2) +3x          +3x
                                                                                      3)         -4 = 1x + -2
                                            add 2 to both sides -->     4)         +2          +2
                                                            answer  -->     5)         -2 = x
 
 

                                                  Two coordinates --> (5,4) (10,8)         y2 - y
                                use this formula to find the slope -->    x2 - x
                                                                                   1) 8 - 4 = 4
                                                                                   2) 10 - 5 = 5
                                                                                   3)   4/5 = .8
                         enter slope into the equation -->    4) y = .8x + b
                                                                                   5) 4 = .8(5) + b
                                                                                   6) b = 0
                                            finished product  -->     7) y = .8x

 

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