Функция задана формулой f (x) = 3-4x. Верно ли равенство:
1) f (-2) = -5
2) f [tex]\frac{1}{2}[/tex] = 1
3) f (0) = -1
4) f (-1) = 7
1) f (-2) = -5
2) f [tex]\frac{1}{2}[/tex] = 1
3) f (0) = -1
4) f (-1) = 7
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Answers & Comments
1) f( -2 ) = 3 + 8 = 11 -- Не верно
2) f( 1/2 ) = 3 - 2 = 1 -- Верно
3) f( 0 ) = 3 - 0 = 3 -- Не верно
4) f( -1 ) = 3 + 4 = 7 -- Верно
I hope this helps you