Absolute Value Functions And Graphs

I know how its graph looks like but really don't know how to graph it or find its vertex. Please help me. Thank you

The function f(x) = | - 1/2 x | doesn't equalA- g(x)= |- 1/2 | |x|B- g(x)= | 1/2 x |C- g(x)= 1/2 |-x|D- g(x)= 1/2 x

 |x|+|y|=1   would you isolate for y: |y|=1-|x| and then consider x when x<0 and x>0? 

graph each equation or inequality

F(x)=2x4-3x3-10x2+20, find domain, range, maximum, minimum, increasing, decreasing, concavity, inflection points, absolute max/min?

a rainstorm begins as a drizzle, builds up to a heavy rain, and then drops back to a drizzle. The rate r (in inches per hour) at which it rains is given by the function r=-0.5|t-1|+0.5 where t is... more

I am really confised and need help because I have a test tomorrow.

GRAPH EACH ABSOLUTE VALUE EQUATION.   Y=!-1/4×-! ( the exclamation mark are the absolute value signs, please help)