Given the funtion f(x)=-4-x:
a. evaluate: f(-2)
b. solve for x when f(x) =-8

f(x)=-4-x

A. f(-2)=-4-(-2)=-4+2=-2

      f(-2)=-2

B. f(x)=8

-4-x=8    /+4

-x=12     /*(-1)

x=-12

step-by-step explanation:

m∠a is 90°

m∠b is 40°