Which of the following are solutions to the inequality below? Select all that apply.

–6u ≥ 34

u= 9
u= 4
u= -8
u= 2

1 answer

To solve the inequality \( -6u \geq 34 \), we first divide both sides by -6. Remember that when we divide or multiply both sides of an inequality by a negative number, we must reverse the inequality sign.

\[ u \leq -\frac{34}{6} \]

Simplifying \( -\frac{34}{6} \):

\[ -\frac{34}{6} = -\frac{17}{3} \approx -5.67 \]

So the inequality becomes:

\[ u \leq -\frac{17}{3} \]

Now we will check each candidate solution to see if it satisfies the inequality \( u \leq -\frac{17}{3} \):

  1. For \( u = 9 \):
    \( 9 \) is not less than or equal to \( -5.67 \). Not a solution.

  2. For \( u = 4 \):
    \( 4 \) is not less than or equal to \( -5.67 \). Not a solution.

  3. For \( u = -8 \):
    \( -8 \) is less than \( -5.67 \). Is a solution.

  4. For \( u = 2 \):
    \( 2 \) is not less than or equal to \( -5.67 \). Not a solution.

The only solution to the inequality \( -6u \geq 34 \) is:

u = -8.

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