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Indian Navy INET Sequences and Series — practice questions — page 3

Explore 75 free Sequences and Series questions in Indian Navy INET Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Sequences and Series questions and exercises with answers

Showing questions 61–75 of 75.

Zero slope, undefined slope, or neither?Read the answer and worked solution →Match each condition to what it tells youRead the answer and worked solution →Parallel, perpendicular, or neither?Read the answer and worked solution →True or false: parallel and perpendicularRead the answer and worked solution →Order the steps: test three points for collinearityRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Which test applies?Read the answer and worked solution →Flip and pair: condition with conclusionRead the answer and worked solution →Tap every statement true of slopeRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Complete the angle between two linesRead the answer and worked solution →True or false: using coordinatesRead the answer and worked solution →

Worked practice questions

Zero slope, undefined slope, or neither?

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Items
  1. Item
    A horizontal line
    Category
    Slope is zero
  2. Item
    A line parallel to the x-axis
    Category
    Slope is zero
  3. Item
    A vertical line
    Category
    Slope is undefined
  4. Item
    A line parallel to the y-axis
    Category
    Slope is undefined
  5. Item
    A line at 45 degrees
    Category
    An ordinary slope
  6. Item
    A line rising gently
    Category
    An ordinary slope
Categories
  1. Item
    Slope is zero
  2. Item
    Slope is undefined
  3. Item
    An ordinary slope
The two special cases, set against ordinary lines. Source: syllabus Maths, Ch 9 Straight Lines.

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Match each condition to what it tells you

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Matching pairs
  1. Left
    Slopes are equal
    Right
    the lines are parallel
  2. Left
    Product of slopes is −1
    Right
    the lines are perpendicular
  3. Left
    Slope of AB equals slope of BC
    Right
    A, B and C are collinear
  4. Left
    Slope equals tan α
    Right
    α is the angle with the x-axis
The three tests the chapter gives. Source: syllabus Maths, Ch 9 Straight Lines.

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Parallel, perpendicular, or neither?

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Questions
  1. Question
    Two lines with equal slopes are
    Choices
    1. perpendicular
    2. parallel
    3. neither
    Correct choice
    parallel
  2. Question
    Two lines whose slopes multiply to −1 are
    Choices
    1. parallel
    2. neither
    3. perpendicular
    Correct choice
    perpendicular
  3. Question
    Slopes 2 and −1/2 mean the lines are
    Choices
    1. perpendicular
    2. parallel
    3. neither
    Correct choice
    perpendicular
  4. Question
    Slopes 3 and 3 mean the lines are
    Choices
    1. perpendicular
    2. parallel
    3. neither
    Correct choice
    parallel
Two conditions decide it. Source: syllabus Maths, Ch 9 Straight Lines.

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