=1/2
you add both on each side then subtract 2 from you anser
-2m-2=10
-2m=12
m=-6,
or
m+1=-5
m=-6
Rewrite the given equation as

.
Since

, you can conclude that the imimum value of y will be gained for the minimum value of

. The minimum value of

is 0 for x=2.
So, y(2)=0+4=4.
Answer: minimum value of y is 4, when x=2.