Mathematics
Grade10
Easy

Question

The range of the exponential function f(x) = 5.8x 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) are 40, 320, 2560, … (>0) for different values of x.
    the range of ax(a>0) is (0,infinity)
    (for k>0) the range of k*(ax) would be (k*0,k*infinity) that is (0,infnity)
    So, the range of the function f(x) = 5.8x is y > 0.

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