Set 8: Exponential Functions

Choice B is correct. Choice B is the correct answer. Substitute and calculate. 1. Substitute: $f(4) = 10(2)^4$. 2. Exponentiate: $2^4 = 16$. 3. Multiply: $10\times 16 = 160$. Strategic Tip: $2^4$ is $2\times 2 \times 2 \times 2 = 16$. Don't do $10\times 2$ first. Choice A is incorrect because it calculates $10\times 8$ ($2^3$). Choice C is incorrect because it calculates $10\times 2$. Choice D is incorrect because it calculates $(10 \times 2)^4$ or $10^4$.