suatu fungsi dirumuskan dengan f(x)=6x - 3. jika f(-2) = a dan f(b)=6 hitunglah nilai a+b!

f(x) = 6x -3
f(-2) = 6(-2) -3
a = -15

f(b) = 6(b) -3
6 = 6b -3
9 = 6b
b = 3/2

jadi a + b = -15 + 3/2
= -30/2 +3/2
= -27/2
= -13 1/2

semoga membantu

f(x) = 6x - 3

f(-2) = 6(-2) - 3
= -12 - 3
= -15
a = -15

f(b) = 6(b) - 3 = 6
6b - 3 = 6
6b = 6 + 3
6b = 9
b = 9/6
b = 3/2

a + b = -15 + (3/2)
= -30/2 + 3/2
= -27/2
= -13 1/2