6. there are nine members in a chess club.
each member wants to play two games
against each of the other members. how
many games will be played in total?

144

Step-by-step explanation:

2 games with each other individual player so 2 times 8 which equals 16 then they are nine members so 16 times 9 which equals 144

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)