Functions Mock Tests

If f(x) = x² − 3x + 2, then f(x + 1) − f(x) is:

If f(x) = x³ - 3x² + 3x - 1, then f(f(x)) = 0 has:

If f(x) = 3x − 4 and g(x) = x², what is the value of g(f(2))?

If f(x) = x² + 1 and g(x) = x − 2, what is f(2)?

If f(x) = x² + 2x, what is the value of f(3)?

The range of f(x) = sin x is

If f(x) = 2x² − 3x + 1, what is the value of f(−1)?

If f(x) = 2x² − 3x + 1 and g(x) = x + 4, what is the value of f(g(2))?