x+4+3x=72
4x+4=72
4x=72-4
4x=68
4x/4=68/4
x=17
The correct answer is that the y -axiz shows exponential increase, not a linear increase. Instead of counting consecutively by ones or twos, the y -axis goes from 1 to 2 to 4 to 8 (multiplying by 2). This will result in data that looks closer together than it actually is, and therefore is misleading.
2 2 2 2 2 22 2 2 22 2 2 2 2 2 2 2 2 2 2
its 2.
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