Answer:
AB = 32
Step-by-step explanation:
Since line l bisects AB at point M, we have AM = MB.



AM = 4(4) = 16, MB = 5(4) - 4 = 16.
So AB = AM + MB = 16 + 16 = 32.
For this case we have the following equation:

Deriving we have:

We match zero:

We clear the value of x:

Then, we substitute the value of x in the equation of the parabola:

Thus, the vertex of the parabola is the ordered pair:
Answer:
The vertice is:
Answer:
6x=-60
Step-by-step explanation:
Answer:
I'm thinking it's 42. Did you notice that there is a pattern?