Answer:
The y-intercept of the graph is the function value y = 0
The greatest value of y is y = 2
Given:
The function is:
It is given that -1 is a zero of the given function.
To find:
The other zeroes of the given function.
Solution:
If c is a zero of a polynomial P(x), then (x-c) is a factor of the polynomial.
It is given that -1 is a zero of the given function. So, is a factor of the given function.
We have,
Split the middle terms in such a way so that we get (x+1) as a factor.
Again splitting the middle term, we get
For zeroes, .
and and
and and
Therefore, the other two zeroes of the given function are and .
I think the correct answer would be -0.5. It would be the best estimate since looking at the graph the points tend to have a negative correlation where as Y increases the value of X decreases. However, the value of the correlation would be small since the points are very varied. Hope this helps.