1

Set 7: Exponential Functions (Advanced)

Explanation

Answer: A

Which table can be modeled by y=3(4)xy = 3(4)^x?

Table P:

xxyy
03
112
248

Table Q:

xxyy
04
112
236
A.

Table P

✓ Correct
B.

Table Q

C.

Both tables

D.

Neither table

Detailed Explanation

Choice A is correct. Choice A is the correct answer. Check if the data matches the equation. 1. Table P: x=0x=0: 3(4)0=33(4)^0=3 ✓, x=1x=1: 3(4)1=123(4)^1=12 ✓, x=2x=2: 3(4)2=483(4)^2=48 ✓ 2. Table Q: x=0x=0: 3(4)0=343(4)^0=3 \neq 4 ✗ 3. Conclusion: Only Table P matches. Strategic Tip: Always check the initial value first (x=0x=0) to quickly eliminate wrong tables. Choice B is incorrect because Table Q's initial value doesn't match. Choice C is incorrect because only one table matches. Choice D is incorrect because Table P matches.

Key Steps:

The correct answer is Table P

Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.

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