Tugas 1 Komputasi Numerik

Nama : Inne Puspita Sari

NPM : 1406608076

Regresi Linear :

y = ax2 + bx + c

y - ax2 - bx – c = 0

S (y - ax2 - bx – c) = 0

– 2 = 0

a =

a = –

= 2(y - ax2 - bx – c)(-x2)

ax4 + bx3 + cx2 = xy2

a 4+b 3+c 2= 2

b =

b = –

= 2(y - ax2 - bx – c)(-x)

ax3 + bx2 + cx = xy2

a 3+b 2+c =

c =

c = –

= 2(y - ax2 - bx – c)(-1)

ax2 + bx + c = y

a 2+b + c =

4 3 2 a 2

3 2 b =

2 N c

Proses Dalam Excell :

Output :

A : 3

B : 2

C : 1

Persamaan : y = 3x2 + 2x + 1s