Question

post test: exponential and logarithmic functions
which inequality represents the domain of the exponential piece?
a. $x \leq -2$
b. $x \geq -1$
c. $x > 1$
d. $x > 3$

Explanation:

The graph has two pieces: a curved piece on the right that shows exponential growth (increasing steeply, typical of exponential functions) and a different curved piece on the left. The exponential piece starts at $x=-1$ (the point where the two pieces meet) and extends to the right, so its domain includes all $x$-values greater than or equal to $-1$.

Answer:

B. $x \geq -1$