Answer: your friend is trying to find out how many canys are in a box(a) and he gives you 6 and has 15 left
Step-by-step explanation:
6 is your answer, hope it helped
The a value affects the graph by vertically stretching or compressing the graph.
The r and s values affect the zeros, or x intercepts of the parabola, and therefore the vertex.
Hope this helps!