Answer:
The value of y is 8.
Step-by-step explanation:
In order to find the value of y, you have to put in x = 0 into the equation :
[tex]y = {x}^{2} - 6x + 8[/tex]
Let x = 0,
[tex]y = {0}^{2} - 6(0) + 8[/tex]
[tex]y = 8[/tex]