Question 1.
The equation is y = 2x + 5
If you put in any x value given in the table the answer given in the y table of values is incorrect.
For example :
y = 2x + 5
y = 2 x -3 + 5
y = -1
Question 2.
The equation is y = x + 4
Sub an x value into the equation
X = 2
y = 2 + 4
y = 6
He subtracted 4 instead of added.