the distance in feet that karina swims in a race is represented by $8d - 8$, where $d$ is the distance for each lap. what is an expression equivalent to $8d - 8$?

choose the correct answer below.

a. $8d - 8 = -8(d + 8)$
b. $8d - 8 = -8 + 8d$
c. $8d - 8 = 8(d - 8)$
d. $8d - 8 = 8 - 8d$

Question

the distance in feet that karina swims in a race is represented by $8d - 8$, where $d$ is the distance for each lap. what is an expression equivalent to $8d - 8$?

choose the correct answer below.

a. $8d - 8 = -8(d + 8)$
b. $8d - 8 = -8 + 8d$
c. $8d - 8 = 8(d - 8)$
d. $8d - 8 = 8 - 8d$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Equivalent Expressions" ], "new_concepts": [], "current_concepts": [ "Equivalent Expressions", "Algebraic Expressions" ] } ## Identify the given expression $$ 8d - 8 $$ ## Evaluate the options using algebraic properties $$ \begin{aligned} &\text{A. } -8(d + 8) = -8d - 64 eq 8d - 8 \ &\text{B. } -8 + 8d = 8d - 8 \ &\text{C. } 8(d - 8) = 8d - 64 eq 8d - 8 \ &\text{D. } 8 - 8d eq 8d - 8 \end{aligned} $$

(A) $8d-8 = -8(d+8)$

(B) $8d-8 = -8+8d$

(C) $8d-8 = 8(d-8)$

(D) $8d-8 = 8-8d$

{ "subject": "Mathematics", "question_type": "Multiple Choice", "knowledge_point": [ "Mathematics", "Algebra", "Equivalent Expressions" ] }

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Question

Explanation:

Identify the given expression

Evaluate the options using algebraic properties

Answer: