f(x) = -(3/7)^x
...
f(-2) = -(3/7)^(-2) = -(7/3)^2 = -49/9 = -4 i 3/9
f(-1) = -(3/7)^(-1) = -(7/3) = -7/3 = -2 i 1/3
f(0) = -(3/7)^(0) = -1
f(1) = -(3/7)^1 = -(3/7) = -3/7
f(2) = -(3/7)^2 = -(9/49) = -9/49
te wartości dla x coraz większego bedą malały do 0, zatem
odp. B
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f(x) = -(3/7)^x
...
f(-2) = -(3/7)^(-2) = -(7/3)^2 = -49/9 = -4 i 3/9
f(-1) = -(3/7)^(-1) = -(7/3) = -7/3 = -2 i 1/3
f(0) = -(3/7)^(0) = -1
f(1) = -(3/7)^1 = -(3/7) = -3/7
f(2) = -(3/7)^2 = -(9/49) = -9/49
te wartości dla x coraz większego bedą malały do 0, zatem
odp. B