Answer:
Just connect points Y and D with a straight line to make YD. Do the same for YE and YF, just attach Y to points E and F with a straight line.
You multiply each by four to get the next number.
2*4=8
8*4=32
32*4=128
The next one in sequence would be 512. Since 128*4=512
The y-intercept, in this case, represents when x is at 0, or when she just began observing.
2x+3x+2=-4(cause y=3x+2)
5x=-6
x=-6/5
f(-6/5)=-8/5
negative 6 over 5