asked 208k views
4 votes
Solve the inequality. and fill the number line *SHOW YOUR WORK*

f) |x|>5

g) |x-1| ≥ 2

asked
User Paranoia
by
8.2k points

1 Answer

5 votes

Answer:

Let's solve and represent the solutions on a number line for each inequality.

f) |x| > 5

Step 1: Set up two cases based on the absolute value:

Case 1: x > 5

Case 2: x < -5

So, the solutions to the inequality |x| > 5 are x > 5 and x < -5. Now, let's represent these solutions on a number line:

```

-∞---(-5)---(5)---∞

x < -5 x > 5

```

g) |x - 1| ≥ 2

Step 1: Set up two cases based on the absolute value:

Case 1: x - 1 ≥ 2

x - 1 + 1 ≥ 2 + 1

x ≥ 3

Case 2: -(x - 1) ≥ 2

-x + 1 ≥ 2

-x ≥ 2 - 1

-x ≥ 1

Now, remember to reverse the inequality sign when multiplying or dividing by a negative number. So, for Case 2:

x ≤ -1

So, the solutions to the inequality |x - 1| ≥ 2 are x ≥ 3 and x ≤ -1. Now, let's represent these solutions on a number line:

```

-∞---(-1)---(3)---∞

x ≤ -1 x ≥ 3

```

answered
User Ricardo Rocha
by
8.5k points

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