Two quantities are related, as shown in the table:

x y

2 10

4 9

6 8

8 7

Which equation best represents the relationship?

OK here is it

y=mx+c is the basic equation for a linear graph

If u plot the values above on a graph u'll get a straight line so

m is the slope or if they havent taught u slope is amount of y increases or decreases with respect to x. and C is the intercept or in other words where the graph or the system given above meets the y axis.

the above info is quite unnecessary but important to know

so putting the values into the equation

Youll get the values of m and C so

m=-1/2 and C=11

the relation between x and y is

y = (-1/2) x+11

put the values from the table ull get the right answer