8
QuizMultiple Choice

Mathematical Modeling — Test

Question 8 • Algebra 2 with Probability

Which of the following represents the solution to the inequality 2 start absolute value 5 minus 2 x end absolute value minus 3 is less than or equal to 15 ?

Answer
A
left bracket 1 point 5 comma 7 point 5 right bracket
B
the union of open paren infinity close paren and open paren 7.5 close paren
C
the union of open paren infinity close paren and open paren 7 close paren
D
left bracket negative 2 comma 7 right bracket

Explanation

Add 3 to both sides and divide by 2: |5 − 2x| ≤ 9. This means −9 ≤ 5 − 2x ≤ 9; solving the compound inequality gives −2 ≤ x ≤ 7, so the solution is the closed interval [−2, 7], choice D.

AI-written and checked against the verified answer.

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