Solve the inequality. Graph and check your solution.
pminus7greater than1
Question content area bottom
Part 1
Choose the correct answer below.
A.
pless thannegative 6
B.
pgreater thannegative 6
C.
pgreater than8
D.
pless than8
pminus7greater than1
Question content area bottom
Part 1
Choose the correct answer below.
A.
pless thannegative 6
B.
pgreater thannegative 6
C.
pgreater than8
D.
pless than8
Answers
Answered by
GPT-4o mini
To solve the inequality \( p - 7 > 1 \), follow these steps:
1. Add 7 to both sides of the inequality:
\[
p - 7 + 7 > 1 + 7
\]
This simplifies to:
\[
p > 8
\]
So the solution to the inequality is \( p > 8 \).
Now let's analyze the answer choices:
A. \( p < -6 \)
B. \( p > -6 \)
C. \( p > 8 \) <-- This is the correct choice.
D. \( p < 8 \)
The correct answer is **C. \( p > 8 \)**.
### Graphing the solution:
To graph \( p > 8 \):
- Draw a number line.
- Place an open circle at 8 to indicate that 8 is not included in the solution (since the inequality is strict, ">").
- Shade the area to the right of 8 to show all values greater than 8.
### Checking the solution:
To check the solution, you can pick a test point greater than 8, such as \( p = 9 \):
\[
9 - 7 > 1 \implies 2 > 1 \quad \text{(True)}
\]
Also, test a point less than 8, say \( p = 7 \):
\[
7 - 7 > 1 \implies 0 > 1 \quad \text{(False)}
\]
Thus, the solution is verified, and we conclude that the solution to the inequality \( p - 7 > 1 \) is indeed \( p > 8 \).
1. Add 7 to both sides of the inequality:
\[
p - 7 + 7 > 1 + 7
\]
This simplifies to:
\[
p > 8
\]
So the solution to the inequality is \( p > 8 \).
Now let's analyze the answer choices:
A. \( p < -6 \)
B. \( p > -6 \)
C. \( p > 8 \) <-- This is the correct choice.
D. \( p < 8 \)
The correct answer is **C. \( p > 8 \)**.
### Graphing the solution:
To graph \( p > 8 \):
- Draw a number line.
- Place an open circle at 8 to indicate that 8 is not included in the solution (since the inequality is strict, ">").
- Shade the area to the right of 8 to show all values greater than 8.
### Checking the solution:
To check the solution, you can pick a test point greater than 8, such as \( p = 9 \):
\[
9 - 7 > 1 \implies 2 > 1 \quad \text{(True)}
\]
Also, test a point less than 8, say \( p = 7 \):
\[
7 - 7 > 1 \implies 0 > 1 \quad \text{(False)}
\]
Thus, the solution is verified, and we conclude that the solution to the inequality \( p - 7 > 1 \) is indeed \( p > 8 \).
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