AlgebraEasyDirection of a line with positive slope
Algebra practice question
In the xy-plane, a line has a positive slope. Which of the following describes the line?
- A. It rises from left to right.Correct
- B. It falls from left to right.
- C. It is horizontal.
- D. It is vertical.
Answer: A. It rises from left to right.
A positive slope means y increases as x increases: the line goes up to the right.
Why the other answers are wrong
- B. It falls from left to right.
- Falling to the right is a negative slope.
- C. It is horizontal.
- A horizontal line has slope 0.
- D. It is vertical.
- A vertical line's slope is undefined.
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