Name: SAT Math Help & School Math Mastery
Availability: InStock

Loading...

#35420

exponential

functions

easy

45 sec

Function $f$ is defined by $f (x) = - a^{x} + b$ , where $a$ and $b$ are constants. In the $x y$ -plane, the graph of $y = f (x)$ has a $y$ -intercept at $(0, 5)$ . The graph of $y = f (x) + 3$ has a $y$ -intercept at $(0, k)$ . What is the value of $k$ ?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.