Bantuin yah no 34 Tolong bgtttt ka

jawab

(34)  garis  2x _ 3y = 8 di refleksi x = 2
x' = 2(2) - x
x' = 4 - x
x = 4 - x'

y' = y
y = y'
sub ke 2(x) + 3(y) = 8
2(4 - x') + 3(y') = 8
8 - 2x' + 3y' = 8
-2x' + 3y' = 0  ...(i)

dilanjutkan dengan T(2,-1)
x" = x' + 2 
x' = x" - 2

y" = y' - 1
y' = y" + 1
subs ke (i) 
-2(x') + 3(y') = 0
-2(x" -2) + 3 (y" +1) = 0
-2x" + 4 + 3y" + 3= 0
- 2x" + 3y" + 7 = 0
atau
-2x + 3y = - 7
atau
2x - 3y = 7