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Kamis, 10 November 2011

PERSAMAAN GARIS y = x + c

Contoh soal :
y = 1/2x + 4

Jawab!

y  =  1/2x + 4
x = 0             y = 1/2.0 + 4
                      y = 4
                       (0,4)
y =0                0= 1/2  x + 4
                      -4 = 1/2 x
                        x = -4 : 1/2  
                        x = -4 x 2/1
                        X = -8
                        (-8,0)





                                               

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