By the fundamental theorem of calculus,
then by standard differentiation,
is concave upward whenever 
. The denominator is always positive, so the sign is determined by the numerator alone:
Answer: 2001 people attended the football game this week.
Step-by-step explanation:
Given: Total people came to the ball game = 2300
Decrease percent = 13%
Number of people attended the football game this week = p-0.13p, where p= number of people attended football last week.
for p= 2300
Number of people attended the football game this week = 2300- 0.13 x (2300)
=2300- 299
= 2001
hence, 2001 people attended the football game this week.
<h2>True cause they infinitely coincide and intersect and infinitely many solutions (points)</h2>
