You can choose a couple of the x-values and plug each into all of the x's in each equation on the right. Then see which equations give the y-values equal to the y's adjacent to the 3 x-values you used. I chose x=-4 and x=8. Only the 2nd, 3rd, and 5th equations matched with both.
Answer:
y = 2x + 2
Hope you have a great day!
The digit in the tens place is 1.
The digit in the tenths place is 0.