The function g is given by g(x)=−2(x+2)−6. Which of the following expresses the value of g(b−5)?

Answer:
D. -2b
Step-by-step explanation:
g(x)=−2(x+2)−6
given that x = b-5 ---> substitute this into the equation
g(b-5) = −2((b-5)+2)−6
= −2(b-5+2)−6
= −2(b-3)−6
= −2b-3(-2)−6
= −2b+6−6
= -2b