Chapter 1: Coordinate Geometry - Math Mcqs for Grade 8 - Set 1

1)   If a line passes through point A(0, c) and has gradient 'm' then the equation will be

a. y = mx + c
b. c = xy + m
c. m = xy + c
d. cx = y + m
Answer  Explanation 

ANSWER: y = mx + c

Explanation:
No explanation is available for this question!


2)   According to Pythagoras theorem, the distance between points (-3, 8) and (8, -5) is

a. 19.03 units
b. 11.03 units
c. 15.03 units
d. 17.03 units
Answer  Explanation 

ANSWER: 17.03 units

Explanation:
No explanation is available for this question!


3)   If coordinates of A and B are (2, 2) and (9, 11) respectively then the length of line segment AB is

a. 11.4
b. 13.4
c. 15.4
d. 17.4
Answer  Explanation 

ANSWER: 11.4

Explanation:
No explanation is available for this question!


4)   If the points of the straight line are M(7, 1) and N(7, 2) then the line MN is

a. horizontal line with equation with x = 1
b. vertical line with equation with x = 2
c. vertical line with equation with x = 7
d. vertical line with equation with x = 7
Answer  Explanation 

ANSWER: vertical line with equation with x = 7

Explanation:
No explanation is available for this question!


5)   The straight line equation y = 5x - 2 has gradient of

a. x + y
b. xy
c. 2
d. 5
Answer  Explanation 

ANSWER: 5

Explanation:
No explanation is available for this question!


6)   If y = 5x + c passes through point A(5, 2) then the value of 'c' is

a. −21
b. −23
c. −25
d. −27
Answer  Explanation 

ANSWER: −23

Explanation:
No explanation is available for this question!


7)   If straight line passes through the points X(1. 4) and Y(3, 7) then its equation will be

a. 2⁄3x + 5⁄2
b. 3⁄2x + 2⁄5
c. 2⁄3x - 2⁄5
d. 3⁄2x + 5⁄2
Answer  Explanation 

ANSWER: 3⁄2x + 5⁄2

Explanation:
No explanation is available for this question!


8)   If the points of the straight line are A(1, 2) and B(6, 2) then the line AB is

a. horizontal line with equation y = 2
b. vertical line with equation y = 2
c. horizontal line with equation x = 6
d. vertical line with equation x = 6
Answer  Explanation 

ANSWER: horizontal line with equation y = 2

Explanation:
No explanation is available for this question!


9)   The straight line equation y = x⁄2 + 1⁄4 has gradient of

a. 1⁄2
b. 1⁄4
c. x⁄4
d. x⁄2
Answer  Explanation 

ANSWER: 1⁄2

Explanation:
No explanation is available for this question!


10)   The distance between points (2, 5) and (7, -3) is

a. 6.43
b. 9.43
c. 12.43
d. 15.43
Answer  Explanation 

ANSWER: 9.43

Explanation:
No explanation is available for this question!


11)   In gradient-intercept form of equation y = mx + c, the 'c' denotes

a. gradient of straight line
b. intercept on x-axis
c. gradient of independent variable
d. intercept on y-axis
Answer  Explanation 

ANSWER: intercept on y-axis

Explanation:
No explanation is available for this question!


12)   In gradient-intercept form of equation y = mx + c, the point where line cuts y-axis is

a. (3, c)
b. (0, c)
c. (1, c)
d. (2, c)
Answer  Explanation 

ANSWER: (0, c)

Explanation:
No explanation is available for this question!


13)   The straight line equation y = x⁄3 + 1⁄4 cuts y-axis at the point

a. (0, x⁄4)
b. (0, 1⁄3)
c. (0, 1⁄4)
d. (0, x⁄3)
Answer  Explanation 

ANSWER: (0, 1⁄4)

Explanation:
No explanation is available for this question!


14)   In gradient-intercept form of equation y = mx + c, the 'm' denotes

a. gradient of independent variable
b. intercept on y-axis
c. gradient of straight line
d. intercept on x-axis
Answer  Explanation 

ANSWER: gradient of straight line

Explanation:
No explanation is available for this question!


15)   If coordinates of A and B are (5, 6) and (9, 10) respectively then the length of line segment AB is

a. 13.66
b. 9.66
c. 5.66
d. 7.66
Answer  Explanation 

ANSWER: 5.66

Explanation:
No explanation is available for this question!