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Diketahui harga suatu barang di pasar sebesar Rp50...

Diketahui harga suatu barang di pasar sebesar Rp50.000,00 permintaan terhadap barang tersebut sebesar 500 unit dan penawaran sebesar 600 unit. Ketika harga barang naik menjadi Rp50.500,00 permintaan barang tersebut berkurang menjadi 450 unit dan penawarannya menjadi 700 unit. Dari data tersebut, tentukanlah persamaan fungsi permintaan dan fungsi penawaran!undefined 

Jawaban:

Diketahui:

  • P1 = Rp50.000,00
  • P2 = Rp50.500,00
  • Qd1 = 500 unit
  • Qd2 = 450 unit
  • Qs1 = 600 unit
  • Qs2 = 700 unit
     

Ditanya:
Fungsi Permintaan dan Fungsi Penawaran?

Dijawab:

Mencari Fungsi Permintaan

table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator straight Q minus Qd subscript 1 over denominator Qd subscript 2 minus Qd subscript 1 end fraction end cell equals cell fraction numerator straight P minus straight P subscript 1 over denominator straight P subscript 2 minus straight P subscript 1 end fraction end cell row cell fraction numerator straight Q space minus 500 space over denominator 450 space minus space 500 end fraction end cell equals cell fraction numerator straight P space minus space 50.000 over denominator 50.500 space minus space 50.000 end fraction end cell row cell fraction numerator straight Q space minus space 500 over denominator negative 50 end fraction end cell equals cell fraction numerator straight P minus 50.000 over denominator 500 end fraction end cell row cell 500 space left parenthesis straight Q minus 500 right parenthesis space end cell equals cell space minus 50 space left parenthesis straight P minus 50.000 right parenthesis end cell row cell 500 straight Q space minus space 250.000 space end cell equals cell space minus 50 straight P space plus 2.500.000 end cell row cell 500 straight Q space end cell equals cell space minus 50 straight P space plus space 2.500.000 space plus space 250.000 end cell row cell 500 straight Q space end cell equals cell space minus 50 straight P space plus space 2.750.000 end cell row cell Qd space end cell equals cell space fraction numerator negative 50 straight P space plus space 2.750.000 over denominator 500 end fraction end cell row cell Qd space end cell equals cell space minus 0 comma 1 straight P space plus space 5.500 end cell end table undefined 

Mencari Fugsi Penawaran

table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator straight Q minus Qs subscript 1 over denominator Qs subscript 2 minus Qs subscript 1 end fraction end cell equals cell fraction numerator straight P minus straight P subscript 1 over denominator straight P subscript 2 minus straight P subscript 1 end fraction end cell row cell fraction numerator straight Q space minus 600 space over denominator 700 space minus space 600 end fraction end cell equals cell fraction numerator straight P space minus space 50.000 over denominator 50.500 space minus space 50.000 end fraction end cell row cell fraction numerator straight Q space minus space 600 over denominator 100 end fraction end cell equals cell fraction numerator straight P minus 50.000 over denominator 500 end fraction end cell row cell 500 space left parenthesis straight Q minus 600 right parenthesis space end cell equals cell space 100 space left parenthesis straight P minus 50.000 right parenthesis end cell row cell 500 straight Q space minus space 300.000 space end cell equals cell space 100 straight P space minus space 5.000.000 end cell row cell 500 straight Q space end cell equals cell space 100 straight P space minus space 5.000.000 space plus space 300.000 end cell row cell 500 straight Q space end cell equals cell space 100 straight P space minus space 4.700.000 end cell row cell Qs space end cell equals cell space fraction numerator 100 straight P space minus space 4.700.000 over denominator 500 end fraction end cell row cell Qs space end cell equals cell space 0 comma 2 straight P space plus space 9.400 end cell end table

 undefined 

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