Mathematics
Grade10
Easy

Question

The range of the exponential function f(x) = 5.2x is _________.

  1. y = 0
  2. y > 0
  3. y < 0
  4. -1 < y < 1

The correct answer is: y > 0


    The values of y=f(x) are1 over 8 comma space 1 fourth comma space 1 half comma space 1 comma space 2 comma space 4 space left parenthesis greater than 0 right parenthesis for different values of x.
    So, the range of the function f(x) = 3.2x is y > 0.

    for any  function f(x) =ax (if a>1) the range of f(x) is (0,infinity)
    therefore for f(x)=k.ax the range would be (0*k,infinity*k) that is (0,infinity)

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