What is the slope of the line that passes through the points left parenthesis, minus, 10, comma, minus, 8, right parenthesis(−10,−8) and left parenthesis, minus, 9, comma, minus, 8, right parenthesis(−9,−8)? Write your answer in simplest form.

To find the slope of the line that passes through the points \((-10, -8)\) and \((-9, -8)\), we use the slope formula:

\[
m = \frac{y_2 - y_1}{x_2 - x_1}
\]

Where:
- \((x_1, y_1) = (-10, -8)\)
- \((x_2, y_2) = (-9, -8)\)

Substitute the coordinates into the formula:

\[
m = \frac{-8 - (-8)}{-9 - (-10)}
\]

Simplify the expression:

\[
m = \frac{-8 + 8}{-9 + 10} = \frac{0}{1} = 0
\]

So, the slope of the line is \(0\).

Would you like more details, or do you have any questions?

Here are some related questions:
1. What does a slope of 0 indicate about the line?
2. How would the slope change if the \(y\)-coordinates were different?
3. What is the slope of a vertical line?
4. How do you find the equation of a line given a point and the slope?
5. What is the relationship between parallel lines in terms of their slopes?

**Tip:** A slope of 0 means the line is horizontal and parallel to the x-axis.

Learn how to find the slope of a line passing through the points (-10, -8) and (-9, -8). Follow a step-by-step explanation using the slope formula. Suitable for students in Grades 7-9.

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