Answer: Use the standard form to find the vertices.
Vertex
1:(10,0) vertex 2:(-10,0)
Step-by-step explanation:
According to the table,
when
. This means

From the table we also see that
when
, so

So we have

On the other hand, the table shows
when
, or

so the given equation is not true.
Answer: 6 minutes.
Step-by-step explanation: You can use a graphing calculator to see the exact graph, but you're trying to figure out what value of x gives you a y of 0. -50 times 6 is 300, plus 300 equals 0.
Answer:
4.75
Step-by-step explanation: