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JEE Main Straight Lines — practice questions

Explore 26 free Straight Lines questions in JEE Main Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Straight Lines questions and exercises with answers

Showing questions 1–26 of 26.

The angle a line makes with the positive x-axis, measured anticlockwise, is its:Read the answer and worked solution →The tangent of the inclination of a line is called its slope or:Read the answer and worked solution →Lines parallel to the x-axis have an inclination of:Read the answer and worked solution →The inclination of a vertical line is:Read the answer and worked solution →The slope of a line is denoted by which letter?Read the answer and worked solution →The distance of a point from a line is the length of which segment?Read the answer and worked solution →For which inclination is the slope of a line not defined?Read the answer and worked solution →What is the slope of the x-axis?Read the answer and worked solution →Three points lie on a line when the area of the triangle they form is:Read the answer and worked solution →Three points that lie on the same line are described as:Read the answer and worked solution →Two lines drawn in a plane are found to be either parallel or:Read the answer and worked solution →The angle between two lines is discussed in terms of their:Read the answer and worked solution →The inclination of a line may be described as acute or:Read the answer and worked solution →An equation of the form Ax + By + C = 0 is called the general equation of a:Read the answer and worked solution →In the general equation of a line, A and B must not both be:Read the answer and worked solution →Why must the two points used to compute a slope have different x values?Read the answer and worked solution →A line with slope m and y-intercept c passes through which fixed point?Read the answer and worked solution →The line is described as the simplest figure in which branch of geometry?Read the answer and worked solution →What is the slopeRead the answer and worked solution →Horizontal or verticalRead the answer and worked solution →Type the geometry termRead the answer and worked solution →Type the angle or slopeRead the answer and worked solution →One word is wrongRead the answer and worked solution →Parallel or intersectingRead the answer and worked solution →Which one does not belongRead the answer and worked solution →Spot the false statementRead the answer and worked solution →

Worked practice questions

The angle a line makes with the positive x-axis, measured anticlockwise, is its:

  1. Inclination
  2. Inclusion
  3. Incision
  4. Infusion
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Correct answer: A. Inclination

1. A line is fixed in direction by the angle it makes with a reference. 2. That reference is the positive direction of the x-axis. 3. The angle measured anticlockwise from it is called the inclination. 4. It runs from zero up to one hundred and eighty degrees. _Source: syllabus Mathematics, Ch 9 'Straight Lines'_

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The tangent of the inclination of a line is called its slope or:

  1. Gravitate
  2. Gradient
  3. Graduate
  4. Granulate
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Correct answer: B. Gradient

1. Inclination is an angle and slope is a number derived from it. 2. Taking the tangent turns the one into the other. 3. That value is called the slope or gradient of the line. 4. It is denoted by m. _Source: syllabus Mathematics, Ch 9 'Straight Lines'_

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Lines parallel to the x-axis have an inclination of:

  1. Zero degrees
  2. Nine degrees
  3. Sixty degrees
  4. Ninety degrees
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Correct answer: A. Zero degrees

1. A horizontal line never rises above its starting height. 2. The angle it makes with the x-axis is therefore nothing at all. 3. Lines parallel to the x-axis have inclination of zero degrees. 4. So their slope is zero. _Source: syllabus Mathematics, Ch 9 'Straight Lines'_

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