Question one:A
Question 2: C
1 is for circle
2 is for triangle
3 is for surface area
4 is for volume
Let's say "c" is a constant, hmmmm any constant, for any value whatsoever of "x", "y" is always that constant, for example, say c = 3, thus y = 3, so a table for it will look like

now, if you plot those points, it'd looks like the picture below.