The question on the screen is asking for the missing value of $f(x)$ when $x = 1$ for the function $f(x) = 6(1.5)^x$.

To solve for $f(1)$:

1. Substitute $x = 1$ into the function: $f(1) = 6(1.5)^1$

2. Calculate $(1.5)^1$, which is simply 1.5: $f(1) = 6 \times 1.5$

3. Multiply: $f(1) = 9$

Thus, the missing value at $(1, ?)$ is 9.

Would you like more details, or do you have any questions about this?

Here are some related questions for further practice:

1. What would the value of $f(2)$ be for this function?
2. How would the function change if the base of the exponent was 2 instead of 1.5?
3. Can you determine the initial value and growth rate from the function $f(x) = 6(1.5)^x$?
4. What is the general formula for exponential growth functions?
5. How would you graph an exponential function like $f(x) = 6(1.5)^x$?

Tip: For exponential functions, the base of the exponent (in this case, 1.5) determines if the function grows (if base > 1) or decays (if base < 1).