Desmos Graphing Calculator

CalcReferenceCopy

Math·Advanced Math·Nonlinear functions

hard

$$y=2(a{)}^{x+c}-b$$
How many times does the graph of the given equation in the xy-plane cross the x-axis, where $a$, $b$, and $c$ are positive constants such that $a>9$ and $b>c$?

A

Zero

B

One

C

Two

D

Three