Предмет: Математика, автор: TomiBro

линейная функция задана формулой f (x)=3x+l. Найдите значение l.
1)f (2)=14 f(-2)=1

Ответы

Автор ответа: lgnna
0
a) f(2)=14           b) f(-2)=1
14=3x2+l               1=3x(-2)+l 
14=6+l                   1=-6+l
l=14-6                     l=1+6
l=8                         l=7


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