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Test: Graphical Representations - Class 9 MCQ


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6 Questions MCQ Test Mathematics (Maths) Class 9 - Test: Graphical Representations

Test: Graphical Representations for Class 9 2024 is part of Mathematics (Maths) Class 9 preparation. The Test: Graphical Representations questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Graphical Representations MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Graphical Representations below.
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Test: Graphical Representations - Question 1

2x + 4 = 3x + 1 will represent a.

Detailed Solution for Test: Graphical Representations - Question 1
2x+4=3x+1 2x-3x=1-4 -x=-3 x=3 Here x is positive.So it is in the right side and value of x is 3.So it is 3unit in right of y axis.
Test: Graphical Representations - Question 2

The line x = 3 is

Detailed Solution for Test: Graphical Representations - Question 2
Line x=3 has special form - it is not from the same family of lines in the form y=mx+b.

Slope is not defined for a line x=3 because it represents vertical line.

Remember the definition of slope. In common words, it is the value that tells us how much is line increasing/decreasing as we move from left to right on the graph. That is why horizontal lines have zero slope - no increase nor decrease on horizontal line.

Now, imagine vertical line. In only 1 point it increases in infinity. Thus, we cannot use any real value of m to describe this behaviour.
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Test: Graphical Representations - Question 3

A line intercepts the x axis at (-7, 0), so its x intercept is​

Detailed Solution for Test: Graphical Representations - Question 3

The x-intercept of a line is the x-coordinate of the point where the line crosses the x-axis.

Given that the line intercepts the x-axis at (-7, 0), the x-intercept is -7.

So, the correct answer is Option 1: -7.

Test: Graphical Representations - Question 4

An equation of the type ————- represents a line passing through the origin.

Test: Graphical Representations - Question 5

Which of the following statements is true regarding reflection of light?

Detailed Solution for Test: Graphical Representations - Question 5

The correct answer is B: The angle of incidence is always equal to the angle of reflection.

  • This principle is known as the Law of Reflection.
  • It states that when a light ray hits a smooth surface, the angle at which it arrives (angle of incidence) is equal to the angle at which it leaves (angle of reflection).
  • Both angles are measured from the normal, an imaginary line perpendicular to the surface at the point of incidence.
Test: Graphical Representations - Question 6

——————- is the equation of y-axis.

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