tolong bantu pake cara yaa dikumpulin besok makasii

h(x) = ax + 9
h(3) = -6
a = ?

h(3) = -6
a(3) + 9 = -6
3a + 9 = -6
3a = -6 - 9
3a = -15
a = -15/3 = -5

maaf kalau salah
semoga membantu