#1359 ПОМОГИТЕ ПОЖАЛУЙСТА. Created by PakJD. matematika-ru

#1359 ПОМОГИТЕ ПОЖАЛУЙСТА...

lara164

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2 votes Thanks 2

andrisd

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Y=1.5x+3
x=1
y=1.5+3=4.5
(1;4.5)
x=0
y=3
(0;3)
По этим точкам можно построить график.
у=0
0=1.5х+3
1.5х=-3
х=-2
положительна при х∈(-2;+∞)
отрицательна при х∈(-∞;-2)

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