Class 9 Mathematics · Chapter 7 · Test 4
General Form and Applications
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 linear equation ax + by + c = 0 with a and b not both zero represents:
- Aa circle
- Ba parabola
- Ca point
- Da straight line
Show answerHide answer
Answer: D
Every such equation represents a straight line.
Question 2
The slope of the line ax + by + c = 0 with b ≠ 0 is:
- Aa/b
- B−a/b
- Cb/a
- D−b/a
Show answerHide answer
Answer: B
y = −(a/b)x − c/b so the slope is −a/b.
Question 3
The y-intercept of ax + by + c = 0 with b ≠ 0 is:
- A−c/b
- Bc/b
- C−c/a
- Db/c
Show answerHide answer
Answer: A
Putting x = 0 gives y = −c/b.
Question 4
The x-intercept of ax + by + c = 0 with a ≠ 0 is:
- Ac/a
- B−a/c
- C−c/a
- Da/c
Show answerHide answer
Answer: C
Putting y = 0 gives x = −c/a.
Question 5
If b = 0 in ax + by + c = 0 the line is:
- Ahorizontal
- Bvertical
- Calways through the origin
- Dnot a line
Show answerHide answer
Answer: B
The equation becomes x = −c/a which is a vertical line.
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.