( 3, -1 ), 3y = x + 9

No, not a solution

Step-by-step explanation:

Step 1:  Substitute 3 for x and -1 for y

3y = x + 9

3(-1) = (3) + 9

-3 = 12

No, not a solution

 No, not a solution

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

⭐⭐

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12