How do you determine if the equation y=(7)x represents exponential growth or decay?

1 Answer
Daniel L.
Jan 26, 2016

To check if an exponential function is increasing or decreasing you have to look at the base and at a coefficient next to the exponent. See explanation

Explanation:

Let y=a⋅bx be an exponential function.
It can be:

  • Increasing if (a>0 and b>1) or (a<0 and b∈(0;1))
  • Decreasing if: (a>0 and b∈(0;1)) or (a<0 and b>1)
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