(-1, -5)
x-axis is to flip the y - coordinates
y-axis is to flip the x - coordinates
The vertex is the highest point on a downward-opening parabola or the lowest point on an upward-opening parabola.
Answer:
March is the first month
Step-by-step explanation:
If we make a graph. We can see that the quantity of sold water skis overpasses the quantity of snow skis in the month of March.