Sarah earns $7.50 per hour babysitting and $5.00 per hour walking dogs. Last week she worked h hours babysitting and twice as many hours walking dogs. Write an expression to show the amount of money Sarah earned last week. Then multiply and combine like terms to write the expression as one term. Original expression:
Simplified expression:

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:

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation: