Answer:
(-∞,4)
Step-by-step explanation:
the value is going down from the right until it reaches the vertex
Since the focus is at (0, 2) and directrix is y = -2
point where both of these have the same x-value will be at (0, 2) for the focus and (0, -2) for the directrix.
The vertex will also have the same x-value so it will be (0, y).
y-value is half-way between the y-value of the focus, and the y-value of the directrix at x = 0.
Directrix y-value is -2 at x = 0 and for the focus it's 2 at x = 0.
Halfway between y = -2 and y = 2 is y = 0.
So the vertex of the parabola occurs at (0, 0).
So that's x^2 = 4ay = 4(2)y = 8y.
y = 1/8*x^2
hope it helps
500 inches is greater than 40 feet because, every 12 inches is 1 foot. Since every 12 inches is 1 foot you have to divide. 500÷12=41.6667. Hope this helps!
According to my calculations, after 200 miles, the prices will be equal.
