a cell phone company Mobile x used for the number of text messages x according the function f(x)=0.5+15 on a monthly basis however mobile x doubled their charge per text message from 5 cents to 10 cents under their new plan maggie sent 103 text messages under the old plan and 75 text messages under the new plan what was the difference in maggie text messaging charges

in 4 days he will run   12/14

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:

answer: i think it is c