Yep it’s c.
Y=(number)x + b (or it can be -)
The rise over run (up which is rise and right which is run = positive )
(Negative= down and left)
Count the boxes , down so negative 2
And right positive 5
Where ever the line touch’s in the middle going down is gonna be the y intercept aka (+4)
So it’ll be y=-2/5+4