SOLUTION: how would you solve f(-1/2)=1/4(-1/2)-1/8?

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Question 438113: how would you solve f(-1/2)=1/4(-1/2)-1/8?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=%281%2F4%29%28x%29-1%2F8...your original function;
means you have x=-1%2F2
f%28-1%2F2%29=%281%2F4%29%28-1%2F2%29-1%2F8...multiply %281%2F4%29%28-1%2F2%29=-1%2F8

f%28-1%2F2%29=-1%2F8-1%2F8

f%28-1%2F2%29=-2%2F8

f%28-1%2F2%29=-cross%282%291%2Fcross%288%294

f%28-1%2F2%29=-1%2F4