15averma+wiki+assignment

15averma Assignment 1

=Page no. 209=

1. Presedential fitness awards (boys) :

 * Age (years) || 10 || 11 || 12 || 13 || 14 || 15 || 16 || 17 ||
 * Time (minutes) || 7.95 || 7.53 || 7.18 || 6.83 || 6.43 || 6.33 || 6.13 || 6.10 ||

__Graph:__


__**Observation:**__ In the graoh above there is a steady pattern. As the x value decreases, the y value increases and it shows that the speed of boys to run a mile decreases as the start growing up.

2. Presedential fitness awards (girls):

 * Age (years) || 10 || 11 || 12 || 13 || 14 || 15 || 16 || 17 ||
 * Time (minutes) || 9.32 || 9.03 || 8.38 || 8.22 || 7.98 || 8.13 || 8.38 || 8.25 ||

__Graph:__



 * 3.** In the above graph there is no steady pattern. At the age of 10, the mile time starts off preety well and decreases but after the age of 14, it starts going up again. Looking at the last point in the graph, we can say that the time will decrease again.


 * 4.** This graph is different from that of the boys' as this one has meandaring patterns while the boys' one had a straight line heading downwards.

60. x= -5, y=2
 * __Page no. 215 #60 - 65.__**

61. y=11, x=-8



62. y=-6, x=1



63. x=4, y=-4



64. y=-1, x=0



65. x=3, y=0



__﻿Page 222 #44-55:__
44. y=x+2, y intercept=2, x intercept=-2

45. y=x-3, y intercept=-3, x intercept=3

46.y=4x+8, y intercept=8, x intercept=-2

47.y=-6+3x, y intercept=-6, x intercept=-2

48.y=5x+15,y intercept=15, x intercept=-3

49.2x+4y=16, y intercept=4, x intercept=8

50.-4x+3y=24, y intercept=8, x intercept=-6

51.x-7y=21, y intercept=-3, x intercept=21

52.6x-y=36, y intercept=36, x intercept=6

53.2x+9y=-36, y intercept=-4, x intercept=-18

54.4x+5y=20, y intercept=4, x intercept=5

55.0.5y=-2x+8, y intercept=4, x intercept=4