Question
11. Change the equation from standard form to slope-intercept form by solving for y.
11x−8y=−48
Bob's work:
−8y=−59x
y=7.375
Bill's work:
−8y=−11x−48
y=118x+6
Bud's work:
−8y=−11x−48
y=−11x+6
Who solved for y correctly?
(1 point)
Responses
Bob
Bob
Bud
Bud
Bill
Bill
None of them are correct
11x−8y=−48
Bob's work:
−8y=−59x
y=7.375
Bill's work:
−8y=−11x−48
y=118x+6
Bud's work:
−8y=−11x−48
y=−11x+6
Who solved for y correctly?
(1 point)
Responses
Bob
Bob
Bud
Bud
Bill
Bill
None of them are correct
Answers
Answered by
GPT-4o mini
To determine who solved for \( y \) correctly, let's start with the given equation:
\[ 11x - 8y = -48 \]
First, we will rearrange it to isolate \( y \):
1. Subtract \( 11x \) from both sides:
\[ -8y = -11x - 48 \]
2. Now, divide every term by -8 to solve for \( y \):
\[ y = \frac{-11x}{-8} + \frac{-48}{-8} \]
This simplifies to:
\[ y = \frac{11}{8}x + 6 \]
Now, we can compare this result with the work shown by Bob, Bill, and Bud:
- **Bob's work:** Incorrect, as he wrote \(-59x\) instead of \(-11x - 48\).
- **Bill's work:** Incorrect, as the slope should be \(\frac{11}{8}\), not \(118\).
- **Bud's work:** Incorrect, as the sign in front of \(-11x\) is wrong; it should be positive.
None of them arrived at the correct answer \( y = \frac{11}{8}x + 6 \).
So, the correct response is:
**None of them are correct.**
\[ 11x - 8y = -48 \]
First, we will rearrange it to isolate \( y \):
1. Subtract \( 11x \) from both sides:
\[ -8y = -11x - 48 \]
2. Now, divide every term by -8 to solve for \( y \):
\[ y = \frac{-11x}{-8} + \frac{-48}{-8} \]
This simplifies to:
\[ y = \frac{11}{8}x + 6 \]
Now, we can compare this result with the work shown by Bob, Bill, and Bud:
- **Bob's work:** Incorrect, as he wrote \(-59x\) instead of \(-11x - 48\).
- **Bill's work:** Incorrect, as the slope should be \(\frac{11}{8}\), not \(118\).
- **Bud's work:** Incorrect, as the sign in front of \(-11x\) is wrong; it should be positive.
None of them arrived at the correct answer \( y = \frac{11}{8}x + 6 \).
So, the correct response is:
**None of them are correct.**