You would take 7.5 and divide it by 2 which will give you C. 3.75
Hello there.
To answer this question, we need to remember some properties about the vertex of quadratic functions.
Let
. Its vertex can be found on the coordinates
such that
and
, in which
.
Using the coefficients given by the question, we get that:

Thus, we have:

So the statement is true, because the
coordinate of the vertex of the function is equal to 
Answer:
(1, -1)
Step-by-step explanation:
When you reflect a point (x, y) across the x-axis, its coordinates
become (x, -y).
Thus, when you reflect point S to Point J, the coordinates change from (1, 1) to (1, -1).