Based on the provided image, it appears to be a mathematical question asking for the identification of forms for functions and the features that are most easily identifiable in each case. Here's an analysis:

1. Function 5: $f(x) = 3x^2 - 2x + 6$

   • Form: This is in standard form (quadratic polynomial form).
   • Feature most easily identifiable: The y-intercept can be identified directly as 6 because the constant term gives the value of $f(0)$.

2. Function 6: $f(x) = (x - 4)(x - 2)$

   • Form: This is in factored form.
   • Feature most easily identifiable: The x-intercepts are most easily identifiable as $x = 4$ and $x = 2$, based on the factors.

3. Function 7: $f(x) = (x + 3)^2 - 4$

   • Form: This is in vertex form (a transformation of the standard quadratic function).
   • Feature most easily identifiable: The vertex is most easily identifiable as $(-3, -4)$, derived from the equation's structure.

Would you like further details on these concepts? Here are some related questions to expand understanding:

1. How can you convert between factored form, vertex form, and standard form for quadratic equations?
2. What is the significance of the vertex in a quadratic function?
3. How do you determine the axis of symmetry from vertex form?
4. What are the key steps to graph a quadratic function from its standard form?
5. How can you use the discriminant to understand the nature of the roots in standard form?

Tip: To quickly identify features like the vertex, intercepts, or roots, match the function to the corresponding form and apply its defining characteristics.