Question

I don’t understand it

Answer 1

y=12-1.25x

honestly i dont know if this is right so sorry if its not.

Answer 2

The answer is y=-1.25x+12
she starts with 12 yards of fabric, that’s the starting amount/y-intercept of the equation.
each time (x) she makes a bag, she uses 1.25 yards of fabric.

for example, for one bag, you plug in 1 for x.
y=-1.25(1)+12
y=-1.25+12
y=10.75
=10.75 yards remaining