Question

Given are the slopes of several lines. Indicate whether each line is horizontal, vertical, rises from left to right, or falls from left to right.

Answer 1

1. Rises from left to right
2. Vertical Line
3. Horizontal Line
4. Falls from left to right

Explanation:

Keep in mind we read graphs from left to right just like how we read and write.

• A positive slope will be increase from left to right.
• A negative slope with decrease left to right.
• A vertical line will have a undefined slope.
• A horizontal line will have a slope of 0.

We can use those tips to solve the problem.

Option A:

4/5 is a positive slope so it will rise from left to right.

Option B:

No slope automatically means "undefined" so that falls in the definition of a vertical line.

Option C:

A slope of 0 is defined as a horizontal line.

Option D:

-4/5 is a negative slope so it will fall from left to right.

Best of Luck!