To find the average of $-4$ and $7$, you can use the formula for the average of two numbers:

$\text{Average} = \frac{(-4) + 7}{2}$

Calculating:

$\text{Average} = \frac{3}{2} = 1.5$

So, the average of $-4$ and $7$ is $1.5$.

Would you like more details, or have any questions?

Here are 5 related questions to expand this concept:

1. What is the average of $-4$, $7$, and $12$?
2. How do you find the average of three numbers?
3. What is the sum of $-4$ and $7$?
4. How would the result change if both numbers were negative?
5. What is the average of $0$ and $7$?

Tip: The average of two numbers can be thought of as the midpoint between them.