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Assessment: Logarithmic and Exponential Functions

Answer every question, then submit to see your score and which topics to review.

Part A — Concept Questions

Evaluate y=4ˣ at x=2.

Easy

Evaluate log₅(25).

Easy

Part B — Formula & Application

Find the new horizontal asymptote of y=3ˣ+6 (compared to y=3ˣ, which has asymptote y=0).

Medium

Find f'(0) for f(x)=4eˣ.

Medium

Part C — Problem Solving

Find f'(0) for f(x)=3ˣ (using f'(x)=3ˣ·ln3, ln3≈1.0986). Round to 4 decimal places.

Medium

Find f'(10) for f(x)=ln(x).

Medium

Part D — Real-Life Application

A chemist models radioactive decay using an exponential function and needs the instantaneous rate of decay at a specific time. Which mathematical tool do they need?

Medium

A biologist models bacterial population growth as P(t)=P₀×2ᵗ. What does this exponential model assume about the population's growth pattern?

Medium

Part E — Challenge

If log_b(x)=3 and b=4, find x.

Hard

Find f'(1) for f(x)=eˣ+ln(x). (e≈2.71828) Round to 2 decimal places.

Hard

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