Please help me I dont understand this and could really use some assistance The graph shows the number of gold coins in a video game and the number of turns taken.

What is the rate of change?
-400
-200
200
400
Select one

What is the meaning of the rate of change?
The number of gold coins decreases for each turn taken.
No change to the number of gold coins for each turn taken.
The number of gold coins increases for each turn taken.
Select one

What is the equation of the line?
y=-200x+4200
y=-200x+4000
y=200x+4200
y=200x+4000