Question

Detik-detik ujian nasional Matematikakelas IX 2018/2019.

Dengan caranya ya kak!
Terimakasih:)​

Answer 1

H(2) = 2a+b = -1

h(5) = 5a+b = 8

5a+b = 8

2a+b = -1

..................-

3a = 9

a= 3

2(3)+b = -1

6+b=-1

b=-7

h(9) = 9a+b

=9(3)-7

=27-7

=20

Answer 2

semoga membantu....... ^_^