Question

Se f(x) = -2/3 x + 12 e g (x) = 4x + 16 determine
a)onde f(x) =g(x)
B ) f(-1/2) + g (-1/2)

Answer 1

a) -2/3x+12=4x+16
-2/3x-4x=16-12
-2/3x-12/3x=4
-14/3x=4
-14x=4.3
-14x=12
x=-12/14
x=-6/7

b)f(-1/2)=-2/3.-1/2+12
1/3+12
1/3+36/3
37/3

g(-1/2)=4.-1/2+16
-2+16
14

37/3+14
37/3+42/3

R:79/3