W=14 that’s because 360-80=280 then you have to divide that by 20. And you get 14 weeks.
y-1= ±3/10(x-2)
Im not sure how to get this answer but my teacher gave it to me so i hope this helps!
4 x 2 tens = 80, 28 x 14 = 392
Y=4x+1
Let y=0
0=4x+1
4x=-1
x=-1/4
Let x=0
Y=4*0+1
Y=0+1
Y=1
Therefore, the ordered pair is (-1/4, 1)
