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For the function y = qx, y = 1296 and x = 4. What's the value of q?

  1. 4
  2. 5
  3. 6
  4. 8

Answer (Detailed Solution Below)

Option 3 : 6
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Detailed Solution

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CONCEPT:

Exponential functions are functions of the form f(x) = bx for a fixed base b which could be any positive real number.

The inverse of an exponential function is a logarithmic function.

CALCULATIONS:

Given exponential function is y = qx, also x = 4 and y = 1296

∴ 1296 = q4

⇒ q = 6
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