Which equation is represented by the graph below?

 Option 3 is correct. i.e.,

Step-by-step explanation:

We are given with a line on proper graph.

So, we find the equation of line by using Two-Point form of line.

Two-Point Form of line states,

if a line passes through 2 point say , then equation of line is,

first we find 2 points from graph.

Intersecting points of line with x x-axis and y-axis are (4,0) and (0,2)

so, applying Two-Point form we get

The equation of line is

Therefore, Option 3 is correct.

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.