Dana jest funkcja liniowa f(x) = -3x+2 .Oblicz:a)f(3)b) f(-1/6)c)f(0,27)d)f(3a)e) f(2a+1)
f(x) = - 3x + 2
a)
f(3) = -3*3 + 2 = - 9 + 2 = - 7
b)
f( - 1/6) = -3 *( -1/6) + 2 = 3/6 + 2 = 1/2 + 2 = 2,5
c)
f9 0,27) = -3* 0,27 + 2 = -0,81 + 2 = 1,19
d)
f( 3a) = - 3* 3a = 2 = - 9a + 2
e)
f(2a + 1) = - 3*(2a + 1) + 2 = - 6a - 3 + 2 = - 6a - 1
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f(x) = - 3x + 2
a)
f(3) = -3*3 + 2 = - 9 + 2 = - 7
b)
f( - 1/6) = -3 *( -1/6) + 2 = 3/6 + 2 = 1/2 + 2 = 2,5
c)
f9 0,27) = -3* 0,27 + 2 = -0,81 + 2 = 1,19
d)
f( 3a) = - 3* 3a = 2 = - 9a + 2
e)
f(2a + 1) = - 3*(2a + 1) + 2 = - 6a - 3 + 2 = - 6a - 1