Section 5.3 - Slope Of A Line

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  • 1/9 Questions

    Which coordinates would be the coordinates of one other point that would be on the line passing through the point R(5, -2) with a slope of 1/2?

    • (7, -1)
    • (3, -1)
    • (7, -3)
    • (3, -4)
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About This Quiz

For those of you who love all things mathematics and specifically the slope of a line then this is the quiz for you. If you are prepared to test your knowledge on the properties of the slope of a line, try it out.

Slope Quizzes & Trivia

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  • 2. 

    Calculate the slope of the line through the points M(-6, 0) and N(4, -2)

    • 1/5

    • -1/5

    • 5

    • -5

    Correct Answer
    A. -1/5
    Explanation
    To calculate the slope of a line passing through two points, we use the formula: slope = (change in y) / (change in x). In this case, the change in y is -2 - 0 = -2, and the change in x is 4 - (-6) = 4 + 6 = 10. Therefore, the slope is -2/10 = -1/5.

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  • 3. 

    Determine which point is collinear with (-1, -5) and (1, 1)

    • (2, 2)

    • (0, -2)

    • (2, 0)

    • (4, 2)

    Correct Answer
    A. (0, -2)
    Explanation
    The points (-1, -5), (1, 1), and (0, -2) are collinear because they lie on the same straight line. The slope of the line passing through (-1, -5) and (1, 1) is (1-(-5))/(1-(-1)) = 6/2 = 3. The slope of the line passing through (-1, -5) and (0, -2) is (-2-(-5))/(0-(-1)) = 3/1 = 3. Since both slopes are equal, the points (-1, -5), (1, 1), and (0, -2) are collinear.

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  • 4. 

    Katie is running a marathon.  After 30 minutes, she had run 5 km and after 2.5 hours she had run 34 km.  What was her average rate of speed?

    • 1.05 km/h

    • 13.75 km/h

    • 14.5 km/h

    • 15.5 km/h

    Correct Answer
    A. 14.5 km/h
    Explanation
    To find the average rate of speed, we need to calculate the total distance covered and divide it by the total time taken. Katie ran 5 km in 30 minutes and 34 km in 2.5 hours, which is equivalent to 150 minutes. Therefore, the total distance covered is 5 km + 34 km = 39 km, and the total time taken is 30 minutes + 150 minutes = 180 minutes. Dividing the total distance by the total time gives us the average rate of speed, which is 39 km / 180 minutes = 0.2167 km/minute. Converting this to km/h, we get 0.2167 km/minute * 60 minutes/hour = 13 km/h. Therefore, the correct answer is 13.75 km/h.

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  • 5. 

    What is the value of n such that the line passes through F(4, 3) and G(n,-1) with slope 1

    • -1

    • 0

    • 2

    • 4

    Correct Answer
    A. 0
    Explanation
    To find the value of n, we can use the slope formula: slope = (y2 - y1) / (x2 - x1). Given that the slope is 1 and the coordinates of F are (4, 3), we can substitute these values into the formula: 1 = (-1 - 3) / (n - 4). Simplifying this equation, we get -4 = -4 / (n - 4). Multiplying both sides by (n - 4), we have -4(n - 4) = -4. Expanding the equation, we get -4n + 16 = -4. Rearranging the equation, we find that -4n = -20. Dividing both sides by -4, we get n = 5. Therefore, the value of n that satisfies the given conditions is 5.

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  • 6. 

    Calculate the slope of the line through the points M(4, -7) and N(2, -5)

    • 1

    • -1

    • -2

    • -6

    Correct Answer
    A. -1
    Explanation
    The slope of a line can be calculated using the formula (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of two points on the line. In this case, the coordinates of point M are (4, -7) and the coordinates of point N are (2, -5). Plugging these values into the formula, we get (-5 - (-7)) / (2 - 4) = (-5 + 7) / (2 - 4) = 2 / -2 = -1. Therefore, the slope of the line through points M and N is -1.

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  • 7. 

    The Quicks are driving to their vacation home.  After driving for 3.25 hours, they are 250km from the vacation home.  Then after 4.75 hours of driving, they are 150km from the vacation home.  Approximately, how fast are are the Quicks driving?

    • 60 km/hr

    • 67 km/hr

    • 75 km/hr

    • 83 km/hr

    Correct Answer
    A. 67 km/hr
    Explanation
    The Quicks are driving at an average speed of 67 km/hr. This can be calculated by finding the average speed between the two distances and the corresponding driving times. The difference in distance is 250km - 150km = 100km. The difference in driving time is 4.75 hours - 3.25 hours = 1.5 hours. Therefore, the average speed is 100km / 1.5 hours = 66.67 km/hr, which can be rounded to 67 km/hr.

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  • 8. 

    Determine which point is collinear with (-4, 2) and (5, 8)

    • (1, 4)

    • (0, 3)

    • (-2, 3)

    • (2, 6)

    Correct Answer
    A. (2, 6)
    Explanation
    The point (2, 6) is collinear with (-4, 2) and (5, 8) because it lies on the same line as these two points. Collinear points are points that lie on the same straight line. In this case, the slope between (-4, 2) and (5, 8) is the same as the slope between (-4, 2) and (2, 6), indicating that all three points lie on the same line. Therefore, (2, 6) is collinear with (-4, 2) and (5, 8).

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  • 9. 

    Which coordinates would be the coordinates of one other point that would be on the line passing through the point D(-1, -3) with a slope of -3?

    • (0, 0)

    • (-6, -2)

    • (-6, 0)

    • (0, -2)

    Correct Answer
    A. (-6, 0)
    Explanation
    The point (-6, 0) would be on the line passing through point D(-1, -3) with a slope of -3. This can be determined by using the point-slope formula, which states that the equation of a line passing through point (x₁, y₁) with a slope m is given by y - y₁ = m(x - x₁). Plugging in the values for D(-1, -3) and the slope of -3, we get y - (-3) = -3(x - (-1)), which simplifies to y + 3 = -3x - 3. By solving for y, we get y = -3x - 6. Substituting x = -6 into the equation, we find that y = 0, confirming that (-6, 0) is on the line.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 28, 2008
    Quiz Created by
    Seixeiroda
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