8. Maribel and Philip have the same amount of money in their lunch accounts. Maribel's account balance is represented by the expression
- 6n – 12(-11n + 8). Philip's account balance is represented by the
expression - 10(n – 4). Set up and solve an equation to determine the
amount of money in Maribel's lunch account.
o

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64