Answer:
The vertex is (0, 0).
Step-by-step explanation:
Check out the parent function: y = x^2. The graph is a parabola whose vertex is (0, 0) and which opens upward.
Then y = -x^2 is the same but opens downward. The vertex is (0, 0).
The answer is 90 because you need to do 6x15 which =90
I would say it is 248,700
18 = 6x + 18 -6x
18 = x + 18
0=x
Answer:

Step-by-step explanation:

<u>Divide both sides by -12:-</u>
<u />

<u>Add 4 to both sides:-</u>
<u></u>

OPEACEO ^^