1.) There are 4 houses for sale in a new neighborhood. Each house costs $9,812,472. How much would it cost to buy all 4 houses? 2.) A worker at a medical lab is studying blood samples. Two samples contained a total of 8,527 blood cells. The first sample contained 1,239 blood cells. How many blood cells were in the second sample?

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:

a

step-by-step explanation: