Acustomer's monthly water bill was $75.74. due to a rate increase, her monthly bill now $79.86. to the nearest tenth of a percent, by what percent did the amount of the customer's water bill increase? a) 4.1% b) 5.1% c) 5.2% d) 5.4%

Option D) 5.4%

Step-by-step explanation:

we know that

$75.74 > represent the 100%

so

using proportion

Find the percentage that the amount of the customer's water bill increase

Let

x > the percentage that increase

$75.74/100%=($79.86-$75.74)/x

$75.74/100%=($4.12)/x

x=100*4.12/75.74

x=5.4%

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: