Question

Does the rule 4x4^x represent a linear or an exponential function? Explain.

Answer 1

Exponential. x raised to any power higher than 1 is exponential.

Answer 2

the rule for the same base is add the powers

\[x^1\times x^4 =x^5\]

your problem uses the same rule

\[4^1\times 4^x =4^{x+1}\]

Answer 3

so it is an exponential function