

Matematik B1, T4
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Mathematics
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8th Grade
•
Hard
nur liyana
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8 Slides • 4 Questions
1
Matematik B1, T4
By nur liyana
2
Kenal pasti fungsi kuadratik/ persamaan kuadratik.
mempunyai satu pemboleh ubah sahaja. x/ y/ m/g
kuasa tertinggi pagi pembolehubah ialah 2.
fungsi kuadratik f(x) = ax2 + bx + c
ungkapan kuadratik : ax2 + bx + c = 0
Subject | Subject
Some text here about the topic of discussion
3
Ungkapan yang berikut bukan ungkapan kuadratik
1/x2 + 9x = 3
x-2 -2x - 4 =0
9x3 -10x =5
-3x + 4y = 3
Some text here about the topic of discussion
4
Tentukan persamaan dibawah dan tentukan samada ungkapan kuadratik atau bukan.
x (2x + 12)= -4
(3x+ 2)(3x -2) = 0
x2 (12x + 10) = -2
4x - 2x2 =8
Subject | Subject
Some text here about the topic of discussion
5
Multiple Select
tandakan pada jawapan dibawah yang menunjukkan ungkapan kuadratik
-p2 - 21 p + 3
n(n-2)
x31 + 2x -1
3y2 -3x +1
6
Multiple Select
tentukan yang manakah BUKAN ungkapan kuadaratik
x3 -3
- 21 m2
x2 -5
x21 +4x -1
7
kenal pasti nilai a, b, dan c dalam ungkapan kuadratik
ax2 + bx +c =0
Subject | Subject
Some text here about the topic of discussion
x (2x + 12)= -4 ---------- > 2x2 + 12x +4 =0 , a = 2, b = 12, c = 4
(3x+ 2)(3x -2) = 0 ---------> 9x2 -4 = 0 , a= 9 b= 0 , c = -4
x (12x + 10) = -2
4x - 2x2 =8
8
Fill in the Blanks
Type answer...
9
Multiple Select
antara berikut yang manakah jawapan yang SALAH nilai a, b dan c bagi ungkapan kuadratik dibawah.
2r(r-3)
a= 2
b= -6
c= 0
x2 -2x
a=1
b=-2
c=0
1 -x - 2x2
a = 1
b = -1
c= -2
4x2
a= 4
b=0
c=0
10
bentuk graf U
nilai a> 0 / positif
mempunyai 1 atau dua punca
minimum
bentuk ∩
nilai a <0 / negatif.
mempunyai 1 atau 2 punca.
Maksimum
Jenis graf kuadratik
Some text here about the topic of discussion
11
12
fungsi kuadratik | nilai | bentuk graf | titik min / mak dan koordinat |
|---|---|---|---|
f(x) = -½x2 -4x +2 | | | |
f(x) = x2 -4x + 3 | | | |
f(x) = -2x -4x2 +1 | | | |
kenal pasti titik minimum / maksimum pada graf
Matematik B1, T4
By nur liyana
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