Question

The cost of Jake's cell phone bill is determined by how many megabytes of data he uses each month, as shown in the graph below. Which equation represents the cost of Jake's cell phone bill, y, based on his data usage in megabytes x?
A. y=0.5x 40
B. y=2x 40
C. y=40x 0.5
D.y=40x 2

Answer 1

"The graph below" is an important source of information here.  In fact, you
actually can't answer the question without it.  That's a big part of the reason
it was printed right there in the same place you copied the question from.