Wiki+Assignment+1-+due+Dec.3

1) Data as a set of ordered pairs 2) Changes in Windows

3) Using the STAT PLOT



4) Graphing the Scatter Plot



>Exercises<

1. In the scatter plot above as the age increased the time of the mile time decreased.

2.

3. Up to age 14 as age increased the mile time decreased but from 15 to 16 the mile time increased than when they were 17 the mile time decrased.

4. The boys scatter plot was decreasing but the girls plot was going up and down.

Pg. 215 <I can't up load the pic.s it keeps saying err)

60) x= -5 y=2

61) x= -8 y= 11

62) x= 1 y= -6 63) x= 4 y=-4 64) x= 0 y= -1

65) x=3 y=0

PG. 222 44)

y=x+2

X intercept 0=x+2 0-2=x __**-2=x**__ (-2,0)

Y intercept y=0+2 __**y=2**__ (0,2)

45)

y=x-3

X intercept 0=x-3 0+3=x __**3=x**__ (3,0)

Y intercept y=0-3 __**y=-3**__ (0,-3)

46)

y=4x=8

X intercept 0=4x+8 0-8=4x -8=4x -8÷4=x __**-2=x**__ (-2,0)

Y intercept y=4(0)+8 y=0+8 __**y=8**__ (0,8)

47)

y=-6+3x

X intercept 0=-6+3x 0+6=3x 6=3x 6÷3=x __**2=x**__ (2,0)

Y intercept y=-6+3(0) y=-6+0 __**y=-6**__ (0,-6)

48)

y=5x+15

X Intercept 0=5x+15 0-15=5x -15=5x -15÷5=x __**-3=x**__ (-3,0)

Y Intercept y=5(0)+15 y=0+15 __**y=15**__ (0,15)

49)

2x+4y=16

X Intercept 2x+4(0)=16 2x+0=16 2x=16 x=16÷2 (8,0)
 * __x=8__**

Y Intercept 2(0)+4y=16 0+4y=16 4y=16 y=16÷4 (0,4)
 * __y=4__**

50)

-4x+3y=24

X Intercept -4x+3(0)=24 -4x+0=24 -4x=24 x=24÷-4 __**x=-6**__ (-6,0)

Y Intercept -4(0)+3y=24 0+3y=24 3y=24 y=24÷3 (0,8)
 * __y=8__**

51)

x-7y=21

X Intercept x-7(0)=21 x-0=21 __**x=21**__ (21,0)

Y Intercept 0-7y=21 -7y=21 y=21÷-7 __**y=-3**__ (0,-3)

52)

6x-y=36

X Intercept 6x-0=36 6x=36 x=36÷6 (6,0)
 * __x=6__**

Y Intercept 6(0)-y=36 0-y=36 (0,36)
 * __y=36__**

53)

2x+9y=-36

X Intercept 2x+9(0)=-36 2x+0=-36 2x=-36 x=-36÷2 (-18,0)
 * __x=-18__**

Y Intercept 2(0)+9y=-36 0+9y=-36 9y=-36 y=-36÷9 __**y=-4**__ (0,-4

54)

4x+5y=20

X Intercept 4x+5(0)=20 4x+0=20 4x=20 x=20÷4 __**x=5**__ (5,0)

Y Intercept 4(0)+5y=20 0+5y=20 5y=20 y=20÷5 __**y=4**__ (0,4)

55)

0.5y=2x+8

X Intercept 0.5(0)=2x+8 0=2x+8 0-8=2x -8=2x -8÷2=x (-4,0)
 * __-4=x__**

Y Intercept 0.5y=2(0)+8