fungsi h di nyatakan dengan rumus h(x)=ax + b. jika h(5)=16 dan h(4)=11, nilai h(-1) adalah tolong yh

h (x) =ax + b
h (5) = 16
h (4) = 11
h (5) = 5a + b = 16
h (4) = 4a + b = 11
eliminasi
a = 5
4a + b = 11
4.5 + b = 11
b = 11 - 20
b = -9
h (x) = 5x - 9
h (-1) = 5.-1 - 9
= -14