First, you need to put the equation as y equals to something.
-6 + 2y = 10
Add 6 to both sides:
2y = 16
Divide both sides by 2:
y = 8
So the line y = 8 is equals to the line of -6 + 2y = 10.
The line y = 8 is a straight horizontal line. So that means there is no growth and the y-intercept is 8.
Growth: 0
Y-intercept: 8