Talia's income has increased from $500 $1,000 a week. As a result of this, Talia's consumption of tacos at Margarita's Mexican Grill has increased from 10 tacos a week to 50 tacos a week. What is
Talia's income elasticity of demand, using the midpoint method?

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:

strong negative correlation

i think the answer would be c

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.