Li ming is playing real life. she has saved 20,000 tokens and wants to buy furniture for her house . each piece of furniture costs 2000 tokens. this graph shows how her savings would decrease if she bought 1,2 or 3 pieces of furniture.

The graph would decrease in a linear fashion by 2,000 tokens.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.