Set 3: Trigonometry

Explanation

Answer: A

If $x = 2$ , what is the value of $8x + 2$ ?

✓ Correct

Detailed Explanation

Choice A is correct. 1. Substitute $x = 2$ $8(2) + 2$ $= 16 + 2$ $= 18$ Therefore, $8x + 2 = 18$ when $x = 2$ .

Key Steps:

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Apply the appropriate mathematical formula

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The correct answer is 18

Why others are wrong:

B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.

C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.

D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.

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