Use the formula y2 -y1/x2-x1
Only one section should be coloured in because it's 1/8 of the spinner. Meaning, there is one chance of landing on any colour.
To simplify the given equation, you want to combine like terms. Since both terms have x^8, we can add the coefficients and leave the x^8
3x^8-7x^8 (do 3-7)
=-4x^8 so the answer is C
Hope this helps
2:B
Attached:C
Unfortunately don't know the other two
11 because you would add the 14 and 2 which would be 9^16 then you would subtract 5 which would make it 9^11
