Question

Soal di gambar..

nomor 5

Kak Agraaa ^_^

Answer 1

F(3)=3a+b=11
f(-4)=-4a+b=(-3)
_________________-
7a. =14
a=14/7
a= 2
2.3+b=11
6+b=11
b=11-6
b=5

a) f(5)=2.5+5
=10+5
=15


b) f(0)=2.0+5
=5


c) f(10)=2.10+5
=20+5
=25

maaf klo salah cek dulu yaa

Answer 2

Dengan f(x) = ax + b
f(3) = 3a + b = 11
f(-4) = -4a + b = -3  -
Didapat -> 7a = 14, sehingga a = 2
Serta, untuk b.
3a + b = 11
3(2) + b = 11
6 + b = 11
b = 5

Maka:
f(x) = 2x + 5

Sehingga:
a.)
f(-5) = 2(-5) + 5
f(-5) = -10 + 5
f(-5) = -5

b.)
f(0) = 2(0) + 5
f(0) = 0 + 5
f(0) = 5

c.)
f(10) = 2(10) + 5
f(10) = 20 + 5
f(10) = 25