Pregunta
Part 1 of 2 (8) Points: 0.5 of 1 Save Other than a no solution set, use interval notation to express the solution set and then graph the solution set on a number line. \[ -6 x \geq 42 \] Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution set is \( \square \) . (Type your answer using interval notation.) B. The solution set is \( \varnothing \). w an example Get more help - Clear all Check answer
Ask by Powers Crawford. in the United States
Feb 26,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The solution set is \( (-\infty, -7] \).
Solución
We start with the inequality: -6x ≥ 42.
Step 1: Divide both sides by -6. Remember that when you divide or multiply an inequality by a negative number, the inequality sign reverses.
x ≤ 42/(-6)
Step 2: Simplify the right-hand side:
42/(-6) = -7
So the solution is:
x ≤ -7
In interval notation, the solution set is:
(-∞, -7]
To graph on a number line, draw a closed circle at -7 and shade the line to the left (indicating all numbers less than or equal to -7).
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Como
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The Deep Dive
To solve the inequality \(-6x \geq 42\), first divide both sides by -6, remembering to reverse the inequality sign. This gives you: \[ x \leq -7 \] In interval notation, the solution set is \((-\infty, -7]\). Now, to graph this on a number line: Draw a line and mark the point at -7 with a closed dot (to indicate that -7 is included in the solution set). Then shade everything to the left of -7 to indicate all the numbers less than or equal to -7 are included in the solution. So, the answer is: A. The solution set is \((-\infty, -7]\).
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