Question

What is the correct equation?

Answer 1

Choice B is equation for this graph.

Explanation:

We have given the graph.

We have to find the correct option for this graph.

As this line passes through (0,0) so,check all equations by putting x = 0 we get,

Choice A : y = -2 (it is not true)

Choice B : y = 0 (it is true)

Choice C : 1 = 18 (it is not true)

Choice D: y = -2 (it is not true)

So, choice B is equation for this graph.

Answer 2

B

Explanation:

The graph passes through (0,0) so this point HAS to satisfy the equation.

Let's check this. We put 0 into both x and y and check if the equation holds true:

A) y = -2 NO!

B) y = 0 YES!

C) 1 = 18 NO!

D) y = -2 NO!

Definitely the equation of this graph is B.

Note: If there were more than one "yes" in our checking, then we would have taken another point and boiled it further down. But we didn't need to.