## Geometry: Common Core (15th Edition)

$m = -1$
We are given the two points X $(0, a)$ and Y $(-a, 2a)$. Let's use the formula to find the slope $m$ given two points: $m = \frac{y_2 - y_1}{x_2 - x_1}$, where $(x_1, y_1)$ and $(x_2, y_2)$ are points on the line. Let's plug in the values into this formula: $m = \frac{2a - a}{-a - 0}$ Simplify the numerator and denominator: $m = \frac{a}{-a}$ Divide both the numerator and denominator by their greatest common factor, $a$: $m = -1$
The text passage provides a mathematical problem involving the calculation of the slope of a line given two points, and it also provides the answer to this problem.
single_question_with_answer
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
## Geometry: Common Core (15th Edition)

$m = -1$
We are given the two points X $(0, a)$ and Y $(-a, 2a)$. Let's use the formula to find the slope $m$ given two points: $m = \frac{y_2 - y_1}{x_2 - x_1}$, where $(x_1, y_1)$ and $(x_2, y_2)$ are points on the line. Let's plug in the values into this formula: $m = \frac{2a - a}{-a - 0}$ Simplify the numerator and denominator: $m = \frac{a}{-a}$ Divide both the numerator and denominator by their greatest common factor, $a$: $m = -1$
user
The text passage provides a mathematical problem involving the calculation of the slope of a line given two points, and it also provides the answer to this problem.

TYPE: SINGLE_QUESTION_WITH_ANSWER