Help with yesterday's SAT question of the day please!?

<p>The</a> Official SAT Question of the Day</p>

<p>I have no clue on how to do this, even after clicking ''Want a hint?''. Someone help me, step by step if you can?</p>

<p>Thanks.</p>

<p>You can quickly get to the answer by elimination.</p>

<p>It can't be (A) because that would mean that y is never 0.</p>

<p>It can't be (B) because that would mean that y could be negative.</p>

<p>It can't be (C) because that would mean that y is never 0.</p>

<p>It can't be (E) because that would mean that y is 0 only when x = 1.</p>

<p>Thank you :)</p>