New Learning Composite Mathematics Class 8 SK Gupta Anubhuti Gangal Line Graphs Chapter 15A Solution

New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 8 Line Graphs Self Practice 15A Solution

(1) (a) (0, 18)

=> here, x = 0

Y = 18

Locate by going 0 units along the x axis & 18 positive alongs the y-axis.

(b) 5, 8)

Since, x = 5, y = 8.

Locate by going 5 units along the x axis

8 positive unit along the y axis.

(c) (7, 0)

=> since, x = 7, y = 0

Locate by going 7 positive units along the x axis

Locate by 0 positive units along the y axis.

(d) (5, -8)

=> since, x = 5, y = -8

Locate by going 5 positive units along the x axis.

Locate by going 8 negative units along the y axis.

(e) (8. -14)

=> since x = 8, y = -14

Locate by going 8 positive units along the x axis.

Locate by going 14 negative units along the y axis.

(f) (-15, 4)

=> Since, x = -15, y = 4.

Locate by going 15 negative units along the x axis.

Locate by going 4 positive units along the y axis.

(g) (-9, 5)

=> since, x = 9, y = 5

Locate by going 9 negative units along the x axis.

Locate by going 5 positive units along the y axis.

(h) (-8, -15)

=> since, x = -8, y = -15

Locate by going 8 negative units along the x axis

Locate by going 15 negative units along the y axis.

(i) (-12, -7)

=> since, x = -12, y = -7

Locate by 12 negative units along the x axis.

Locate by going 7 negative units along the y axis.

(j) (-8, 0)

=> Since, x = -8, y = 0

Locate by going 8 negative units along the x axis.

Locate by going 0 negative units along the y axis.

(3)

(a) (8, 2)

= [∴x=8, y= 2] => Polar bears

(b) (5, 0)

= [x = 5, y = 0] => Lions

(c) (8, 9)

= [x = 8, y = 9] => Cafe

(d) (4, 5)

= [x = 4, y = 5] => Gift shop

(e) (4, 2)

= [x = 4, y = 2] => Giraffes

(f) (1, 2)

= [x = 1, y = 2] => Car park

(4)

(a) The exit =>

= [x = 3, y = 10] => 3, 10

(b) The camels =>

= [x = 6, y = 6] => 6, 6

(c) The elephants =>

= [x = 9, y = 6] => 9, 6

(d) The monkeys =>

= [x = 3, y = 7] => 3, 7

(e) The penguins =>

= [x = 1, y = 9] => 1, 9

(5)

(a) 1^st quadrant (+, +)

(b) 3^rd quadrant (-, -)

(c) 2^nd quadrant (-, +)

(d) 4^th quadrant (+, -)

(6)

A = (x = 4, y = 6)

= 4, 6

B = (x = -3, y = 5)

= -3, 5

C = (x = -5, y = 3)

= -5, 3

D = (x = -7, y = -2)

=-7, -2

E = (x = 5, y = -3)

= 5, -3

F = (x = 7, y = 0)

= 7, 0

G = (x = 0, y = -5)

= 0, -5

(7)

(a) 1^st quadrant

(b) 3^rd quadrant

(c) 4^th quadrant

(d) 2^nd quadrant