Question

Suatu fungsi f(x)=ax+b
jika f(-3)=-23 dan f(4)=19

tentukan.
a.nilai a dan b
b.bentuk fungsi
c.fungsi f(2)

Dibantu yhh ceptttttt

Answer 1

A).
f(-3)=-3a+b=-23
f(4)= 4a+ b= 19
------------------------- -
-7a=-42
a=-42/-7
a=6

4a+b=19
b=19-4.6
b=19-24
b=-5

b)
f(x)=ax+b
f(x)=6x-5

c)
f(2)=6.2-5=12-5=7

Answer 2

F(x)=ax+b
f(-3)= - 23
f(4)=19
1.-3a +b = -23
2.4a + b= 19
a. dr eliminasi maka a = 6 , b= -5
b. f(x)= 6x - 5
c. f(2) = 6(2) - 5 = 7