Answer:
-1.5
Step-by-step explanation:
The distance between S and T is
4 - -7
4+7 = 11
Divide this in half to find the midpoint
11/2 = 5.5
Add this to point S to get the point itself
-7 + 5.5 = -1.5
C) p(x) has a zero between x=2 and x=4
For a polynomial p(x), means that, when p(x) is divided by , the remainder is .
This is called the remainder theorem
Therefore , means that when p(x) is divided and is 1 and respectively.
Also the Intermediate value theorem says that, if p(a) and p(b) have opposite signs then there is a certain on where i.e there is a zero between and
Therefore the correct answer is C