Suckless SAT Practice

SAT Practice52a0019a-5b36-4d56-b8de-878dbc9fd5fd

Practice one SAT question at a time

Questions come from the Bluebook question bank.

The function $f$ is defined by $f (x) = a^{x} + b$ , where $a$ and $b$ are constants and $a greater than 0$ . In the xy-plane, the graph of $y = f (x)$ has a y-intercept at $left parenthesis 0 comma negative 25 right parenthesis$ and passes through the point $left parenthesis 2 comma 23 right parenthesis$ . What is the value of $a + b$ ?

Enter your answer

Use the exact value the question expects unless it says to round.