Graph the line that represents a proportional relationship between y and xxx where the unit rate of change of y with respect to xxx is 0.4, point, 4, point In other words, a change of 1 unit in xxx corresponds to a change of 0.4, point, 4 units in y. Graph the line and write the equation of the line.

the equation is=

21

step-by-step explanation:

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: