Answer:
a
Step-by-step explanation:
Answer:
A.-10 should be the answer to the question..
Answer:
Complex numbers are numbers that consist of two parts — a real number and an imaginary number.
Answer:
See below
Step-by-step explanation:
I assume you mean 
The equation is already in vertex form
where
affects how "fat" or "skinny" the parabola is and
is the vertex. Therefore, the vertex is
.
The axis of symmetry is a line where the parabola is cut into two congruent halves. This is defined as
for a parabola with a vertical axis. Hence, the axis of symmetry is
.
The minimum value is the smallest value in the range of the function. In the case of a parabola, the y-coordinate of the vertex is the minimum value. Therefore, the minimum value is
.
The interval where the function is decreasing is 
The interval where the function is increasing is
The formula for direct variation is y = kx<span> where k </span>≠ 0
y = 9/x is an inverse relation