Page 70 - BAHAN AJAR GEOMETRI ANALITIK
P. 70
ℎ = 4
= −2
ℎ ± = 9
4 ± = 9
= 5
ℎ ± = 0
4 ± = 0
= −4
2
2
2
= −
2
= 25 − 16
= 9
2
Maka persamaan elips yang terbentuk, yaitu
( −ℎ) 2 + ( − ) 2 = 1
2 2
( −4) 2 ( −(−2)) 2
+ = 1
25 9
2
2
9( − 4) + 25( + 2) = 225
2
9 + 25 − 72 + 100 + 19 = 0
2
66
