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nurik1804
@nurik1804
August 2022
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помогите с 81 задачей
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polinasmart
Y = kx + b - функция спроса
1500 = 100k+b
1200 = 150k + b
-300 = 50k => k = -6
b = 1500 +600 = 2100
y = -6x + 2100 - функция спроса
x0 = 120р
y0 = -6*120 + 2100 = 2100 - 600 - 120 = 1500-120 = 1380
x0 = 0.75*120 = 90
y0 = -6*90 + 2100 = -540 + 2100 = 1560
(1560 - 1380)/1380 = 0.13 - увеличится примерно на 13%
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Answers & Comments
1500 = 100k+b
1200 = 150k + b
-300 = 50k => k = -6
b = 1500 +600 = 2100
y = -6x + 2100 - функция спроса
x0 = 120р
y0 = -6*120 + 2100 = 2100 - 600 - 120 = 1500-120 = 1380
x0 = 0.75*120 = 90
y0 = -6*90 + 2100 = -540 + 2100 = 1560
(1560 - 1380)/1380 = 0.13 - увеличится примерно на 13%