Class 9 Mathematics · Chapter 7 · Test 2
Slope of Lines
40 MCQs
40 questions · 35 min · 40 marks
Want to try first? Take the free Mathematics test: Rational and Irrational Numbers
Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
The angle measured counterclockwise from the positive x-axis to a non-horizontal line is called the:
- Amidpoint
- Binclination
- Cintercept
- Dabscissa
Show answerHide answer
Answer: B
This angle is the inclination of the line.
Question 2
The slope m of a non-vertical line with inclination α is:
- Asin α
- Bcos α
- Ccot α
- Dtan α
Show answerHide answer
Answer: D
The slope is defined as m = tan α.
Question 3
The slope of a horizontal line is:
- A0
- B1
- Cundefined
- D−1
Show answerHide answer
Answer: A
A horizontal line has α = 0° so m = tan 0° = 0.
Question 4
The slope of a vertical line is:
- A0
- B1
- Cundefined
- D−1
Show answerHide answer
Answer: C
A vertical line has α = 90° and tan 90° is not defined.
Question 5
If 0° < α < 90° the slope of the line is:
- Anegative
- Bpositive
- Czero
- Dundefined
Show answerHide answer
Answer: B
tan α is positive for acute angles.
More tests in Coordinate Geometry
Practise with a free account
Save your scores, see which chapters need work, and keep a notebook of every question you got wrong.