thefunction h(x) = f(x) - 3 or h(x) = x -3
that means h(x) is 3 less than the value of f(x).
so we can say that
h(x) = x -3
h(x) +3 = x
that means h(x) shifts downwards 3 units and y intercept decreases.
the option B is correct.
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