Triple the dimensions, multiply, and you get D
To check the decay rate, we need to check the variation in y-axis.
Since our interval is
To compare the decay rates we need to check the variation on the y-axis of both functions.
Now, we calculate their ratio to find how they compare:
This tell us that the exponential function decays at three-fourths the rate of the quadratic function.
And this is the fourth option.
Two multiplied by x plus three plus six is equal to three multiplied by x subtracted by nine