Answer:
2a). Y= 1. 3= x
2b). Y=4 x= 1
3).
Y= x²+3x-18
For -5
First difference
10
Second difference
-8
For -4
First difference
4
Second difference
-14
For -3
First difference
9-9= 0
Second difference
-18
For -2
First difference
-2
Second difference
-20
For -1
First difference
-2
Second difference
-20
For 0
First difference
0
Second difference
-18
The relation ia a quadratic relation because of the highest Power of x to be 2
Explanation:
For
Y=- x+4. Y= 1
Y=x-2. 1= x-2
2y =2. 1+2= x
Y= 1. 3= x
For
Y= x+3. 1= x
Y= 3x+1. Y= 3+1
0= 2x-2. Y= 4
2= 2x
1= x
Y= x²+3x-18
For -5
First difference
25-15= 10
Second difference
10-18= -8
For -4
First difference
16-12= 4
Second difference
4-18= -14
For -3
First difference
9-9= 0
Second difference
0-18 = -18
For -2
First difference
4-6= -2
Second difference
-2-18= -20
For -1
First difference
1-3 = -2
Second difference
-2-18 = -20
For 0
First difference
0+0 = 0
Second difference
0 -18= -18
The relation ia a quadratic relation because of the highest Power of x to be 2