William wants to save up at least $500 to buy a new gaming console. He already saved up $120 and plans to do chores to earn the rest of the money. If his parents are willing to
pay him $8 per chore, what is the minimum number of chores he must do in order to
earn enough money to buy the new gaming console? Apply the 4 steps to solve.

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:

what is the information provided?

step-by-step explanation:

- (2, -7)

- lines r and s and lines t and u must be parallel

i think its a.

hope this