What's the additive inverse of - 1/4

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

If you answer 2+2 you will get over 80 points

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap