CBSE Class 9 - Maths - Co-Ordinate Geometry (Questions and Answers) (#cbseNotes)

Coordinate Geometry

Q & A

Q1: Write the name of the point where both axes intersect?

Answer: Origin

Q2: In which quadrant(s), ordinate of a point is negative?

Answer: III and IV

Q3: If the cooridnates of of two points P(-2,3) and Q(-3, 5), then find (abscissa of P) - (abscissa of Q) 

Answer: = (-2) - (-3) = -2 + 3 = 1

Q4: Plot the points A (-4,4), B (4,4) and C (0,0). Join AB, AC and BC and name the geometrical figure obtained.

Answer: A triangle.

Q5: The abscissa and ordinate of a point are –3 and –5 respectively then write down the ordered pair.

Answer: P(-3, -5)

Q6: From the figure below, answer the following:

ⅰ Co-ordinates of Point C

ⅱ Abscissa of Point E

ⅲ Coordinates of Point A

ⅳ Ordinate of point B

ⅴ Which points have abscissa 0.

ⅵ Quadrant in which Point C lies

ⅶ Perpendicular distance of Point F from x-axis 

ⅷ Points which has same value of x-coordinate 

Answer: 

ⅰ -4, -3

ⅱ 3

ⅲ 0,0

ⅳ -3

ⅴ A and G

ⅵ III Quadrant

ⅶ 2 units

ⅷ A and D

Q7: What is the name of each part of the plane formed by these two lines?

Answer: Quadrant

Q8: In which quadrant, do the following points lies?

A (3, 7), 

B (–9, –6), 

C (10, 15) 

D (–5, 9)

Anaswer: 

A IVth quadrant

B IIIrd quadrant

C Ist quadrant 

D IInd quadrant.

Q9: Write the mirror image of the point S(–5, 7) by using x-axis?

Answer: (–5, –7)

Q10: State whether the following statements are true / false .

ⅰ (5, 7) is a point in the IV quadrant.

ⅱ (-2, -7) is a point in the III quadrant.

ⅲ (8, -7) lies below the x-axis.

ⅳ (5, 2) and ( - 7, 2) are points on the line parallel to y-axis.

ⅴ (-5, 2) lies to the left of y-axis.

Answer:

ⅰ False

ⅱ True

ⅲ True

ⅳ False (parallel to x-axis)

ⅴ False