Mathematics Questions and Answers – Plotting a Point in the Plane if its Coordinates are Given

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This set of Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Plotting a Point in the Plane if its Coordinates are Given”.

1. Which of the following is the correct way to represent the point p(2, -3) in the cartesian system?
a)
b)
c)
d)
View Answer

Answer: b
Explanation: p(2, -3) means that the distance of the point from y – axis is 2 in positive direction and from x – axis is 3 in negative direction.
Therefore, point is located at distance 2 along OX axis and 3 along OY’ axis.
Considering this, option b is correct.
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2. Point p(0, 4) lies along __________ axis.
a) OX
b) OX’
c) OY
d) OY’
View Answer

Answer: c
Explanation: As shown in the diagram below, p(0, 4) means that its x-coordinate is 0 and y-coordinate is 4. Therefore the point’s distance from y-axis will be zero. i.e. it will lie on positive side of y – axis and its distance from x-axis will be 4.
Considering this, we can locate the point p(0, 4) as shown in diagram which lies on OY axis.

3. Point p(-3, 5) lies in __________ quadrant.
a) 1st
b) 2nd
c) 3rd
d) 4th
View Answer

Answer: b
Explanation: As shown in the diagram below, p(-3, 5) means that its x-coordinate is -3 and y-coordinate is 5. Therefore point’s distance from y-axis will be 3 in negative direction (Along XX’ axis) and its distance from x-axis will be 5 in positive direction (along OY axis).
Considering this, we can locate the point p(-3, 5) as shown in diagram which lies in 2nd quadrant.
OR
Short trick: We can see that p(-3, 5) is of (-, +) form. We know that any point of (-, +) form lies in 2nd quadrant.

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter