Question

Which is the graph of y = |2x|?

Answer 1

The graph of any absolute value function will look V-shaped

Since the only V-shaped graph here are choices B and D, this means that we can eliminate choices A and C


Now when x = 0, then y = |2(0)| = |0| = 0


So the point (0,0) lies on the graph of the function


So this eliminates choice D since (0,0) is NOT on the graph of the function.


So the answer is choice B. It turns out that this graph is indeed the answer.