Question

Fungsi h dinyatakan dengan rumus h(x) = ax + b jika h(5) = 16 dan h(4) = 11 maka nilai h(-1) adalah..
kalau boleh kasi caranya kaka..

Answer 1

16 = a5 + b
11 = a4 + b
-------------- -
5 = a1
a = 5

4(5) + b = 11
20 + b = 11
B = 11-20 = -9

h(-1) = 5(-1) + (-9)
= -5 - 9
= -14

Maaf klo salah

Answer 2

5a= 16
4a= 11
a= 5
5a+b= 16
5.5+b= 16
25+b=16
b= 16-25
b= -9
ax+b
5.-1+(-9)
-5-9
-11