Someone me im begging you dont ignore this i need and i cant understand how to do it explain it to me

see below

Step-by-step explanation:

domain is the certain values x can be

substitute -1,0,1 and 2 in for x

f(-1)=-3-1= -4

f(0)=0-1=-1

f(1)= 3-1=2

f(2)=6-1=5

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

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