21. Titik puncak dari grafik fungsi y = -x?+ 4x + 5 adalah ....
a. ( -4,7) c. (2,9)
b.(-2,-7) d. (4,5)
a. ( -4,7) c. (2,9)
b.(-2,-7) d. (4,5)
Jawaban:
tipun y:
-b/2a
-4/-2
2
tipun x:
-x²+4x+5
-2²+4(2)+5
4+8+5
=17
[answer.2.content]100 Property Investment Tips: Learn from the experts and accelerate your success
100 Property Investment Tips: Learn from the experts and accelerate your success
Jawaban:
tipun y:
-b/2a
-4/-2
2
tipun x:
-x²+4x+5
-2²+4(2)+5
4+8+5
=17
[answer.2.content]