Mathematics
Grade-8
Easy

Question

What is the slope of a line which is parallel to x-axis?

  1. -1
  2. 0
  3. 1
  4. Not defined

The correct answer is: 0


    If a line is parallel to the x-axis then angle formed by it with x-axis is zero. So, its inclination is zero. Hence slope = tan 0° = 0.

    Correct option is (b).
    The slope of line parallel to x axis will be 1
    The line be horizontal

    Related Questions to study

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    If slope of a line is 4 and x-intercept made by the line is 2 then the equation of line will be __________

    4 cross times 8Given
    Slope(m)=4 and x intercept is 2
    The general equation of slope intercept form is y=mx+c
    At x intercept y=0
    0=mx+c

    0=4*2 +c

    c=-8
    Therefor the equation will be y=4x-8

    If slope of a line is 4 and x-intercept made by the line is 2 then the equation of line will be __________

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    4 cross times 8Given
    Slope(m)=4 and x intercept is 2
    The general equation of slope intercept form is y=mx+c
    At x intercept y=0
    0=mx+c

    0=4*2 +c

    c=-8
    Therefor the equation will be y=4x-8

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    The slope-intercept form of the linear equation is

    Correct option is (a).
    The slope-intercept form of the linear equation is y equals c over b minus fraction numerator a x over denominator b end fraction

    The slope-intercept form of the linear equation is

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    Correct option is (a).
    The slope-intercept form of the linear equation is y equals c over b minus fraction numerator a x over denominator b end fraction

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    The line that passes through the middle of the plotted points is known as

    Correct option is (c).
    The line that passes through the middle of the plotted points called Trend line

    The line that passes through the middle of the plotted points is known as

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    Correct option is (c).
    The line that passes through the middle of the plotted points called Trend line

    parallel
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    A survey was made among students in a district and the scatter plot shows the level of reading and height for 16 students in the district. Describe the association and give a possible reason for it.

    Correct option is (d)
    When the level of reading is 2, heights of student is 50 inches
    When the level of reading is 5, heights of student is 55 inches
    When the level of reading is 7, heights of student is 60inches
    When the level of reading is 6, heights of student is  45,55,60 inches respectively.
    The graph shows when level of reading increases heights of students also increase , which means the garph is positive but for same level of reading there are more than one students of different heights which the association is non linear

    A survey was made among students in a district and the scatter plot shows the level of reading and height for 16 students in the district. Describe the association and give a possible reason for it.

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    Correct option is (d)
    When the level of reading is 2, heights of student is 50 inches
    When the level of reading is 5, heights of student is 55 inches
    When the level of reading is 7, heights of student is 60inches
    When the level of reading is 6, heights of student is  45,55,60 inches respectively.
    The graph shows when level of reading increases heights of students also increase , which means the garph is positive but for same level of reading there are more than one students of different heights which the association is non linear

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    David asked 20 people if they can buy a new product that he developed at each of several prices. The scatter plot shows how many of the 20 people said “yes” at a given price. Describe the association between price and the number of buyers.

    Correct option is (a)
    When David kept the price of his product $2 there were total 20 buyers
    when he increased the price to $4 the number of buyers reduced to 19
    when he further increase  the price to $8 the number of buyers reduced to 11
    The graph is clearly depicting when the dependent variable increases the independent decreases and the change in the dependent is not constant with the change iof independent variable
    and hence it shows a case of non linear association

    David asked 20 people if they can buy a new product that he developed at each of several prices. The scatter plot shows how many of the 20 people said “yes” at a given price. Describe the association between price and the number of buyers.

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    Correct option is (a)
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    when he increased the price to $4 the number of buyers reduced to 19
    when he further increase  the price to $8 the number of buyers reduced to 11
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    Alexa is training for a 10K race. For each of her training runs, she recorded the distance she ran and the time she ran. She made a scatter plot of her data and drew a trend line. Use the trend line to predict how long it would take Alexa to run 4.5 miles.

      
      
      
      
      
      
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    The slope is undefined means

    Correct option is (a)
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    The  slope is zero means

    Correct option is (a).
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    Correct option is (a).
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    Which association has slope -1?

    Which association has slope -1?

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    Which association has slope 1?

    Which association has slope 1?

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    Which figure gives perfect linear correlation?

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    When the value of the independent variable increases and the value of the dependent variable
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    When the value of the independent variable increases and the value of the dependent variable
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    When the value of the independent variable increases and the value of the dependent variable
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    The correct option is (a).
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    The correct option is (a).
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    The scatter plot shows David’s height at various ages. Choose the right answer that describe the type of association between David’s age and his height.

    The corerect option is (c)
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