Praxis 5003 Practice Test Practice Question
Which of the following lists contains all the coefficients of the expression 12x^3 + 7x^2 + 24x?
Correct Answer: C
Rationale: The coefficients of a polynomial are the numerical factors that multiply each term. In the expression 12x^3 + 7x^2 + 24x, the coefficients are 12 (for x^3), 7 (for x^2), and 24 (for x).
Option A (2, 3) is incorrect as it does not include any of the actual coefficients from the expression. Option B (7, 12) is missing the coefficient 24, thus failing to represent all coefficients. Option D (2, 3, 7, 12, 24) includes extraneous numbers (2 and 3) that are not part of the expression, making it inaccurate. Only option C (7, 12, 24) accurately lists all relevant coefficients.
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