A residual plot of an exponential model fit poorly with a linear trend, but a plot of log(y) vs x is well-fit linearly. The model is approximately
- A
y = ax + bx²
- Bcheck_circle
y = a · b^x
- C
y = a · x^p
- D
y = a + bx
Explanation
log y linear in x ⟹ y = a·b^x (exponential growth/decay).