Page 251 - Math Grade 12 (Basic)

PROEUS DARA

l:'i. y = -0.5x+ 3
0~
""
m x = 2 2l:dj y = -0.5(2)+3 = 2
X= 3 sl2J y = -0.5(3)+3 = 1.5 '1

2
X; Y; X; Y; Y;

150 50 7500 22500 2500
152 58 8816 23104 3364

152 48 7296 23104 2304

!55 50 7750 24025 2500

!55 52 8060 24025 2704
157 60 9420 24649 3600

158 53 8374 24964 2809

158 63 9954 24964 3969

160 54 8640 25600 2916

160 62 9920 25600 3844
165 56 9240 27225 3 36

n v I
.
y =
!

i I

II 11
n:nru ~ x; = 1722 , ~ Y; = 605 ' ~ X;Y; = 94970
i = 1 i I i I

246