Question
Solve the inequality. Graph the solution set, and write the solution set in set-builder notation and inter integers. \( -5 t-5<-(t+2)-4 t \)
Ask by Ryan Bartlett. in the United States
Feb 25,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The inequality is always true for any value of t, so the solution set includes all real numbers and all integers.
Solution
We start with the inequality
–5t – 5 < –(t + 2) – 4t.
Step 1. Simplify the right side:
–(t + 2) – 4t = –t – 2 – 4t = –5t – 2.
Now the inequality becomes:
–5t – 5 < –5t – 2.
Step 2. Add 5t to both sides to eliminate the t-term:
(–5t – 5) + 5t < (–5t – 2) + 5t
–5 < –2.
Step 3. Analyze the result:
The inequality –5 < –2 is always true. This means that no matter what value t takes, the original inequality holds.
Solution in Different Forms:
1. Interval Notation:
The solution set is (–∞, ∞).
2. Set-Builder Notation:
{ t ∈ ℝ }.
3. Integer Solution:
Since every real number is a solution, every integer is also a solution. In other words, the solution set among the integers is ℤ (all integers).
Graphing the Solution Set:
Draw a horizontal number line.
Shade the entire line, indicating that every point on the line is included.
Place open circles (or no special point marks) everywhere to show there are no restrictions.
Thus, the inequality is true for all t, so the solution set is all real numbers (and hence all integers).
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Bonus Knowledge
To solve the inequality \(-5t - 5 < -(t + 2) - 4t\), let's first simplify both sides: 1. Start by distributing on the right: \(-5t - 5 < -t - 2 - 4t\) Combining like terms gives: \(-5t - 5 < -5t - 2\) 2. Now, we can isolate the terms: Add \(5t\) to both sides: \(-5 < -2\) This is always true, meaning the inequality holds for all values of \(t\). For graphing, you would shade the entire number line. In set-builder notation, the solution set is \(\{ t | t \in \mathbb{R} \}\), and in integers, it's \(\mathbb{Z}\), which includes all integers.