We can determine this in any equation in vertex form just by looking at it. Firstly, start with the base form of vertex form.
y = (x - h)^2 + k
In this equation (h, k) is the vertex. Working by this fact, we know the vertex is (-1, 0). The axis of symmetry is always the x value of the vertex, which allows us to state the vertex at x = -1.
Step-by-step explanation: Ok so if the plant grew 3.25 inches every month, and there were 2.5 months, you need to multiply 3.25 by 2.5 to get the total amount of growth. So that would be 8.125
srry for wrong answer just need points for this question ineed only one more answer for so again i am so srry pls dont get amd or just dont pay any attention to this