In a local district math competition, three schools compete and the winner advance to the state competition. After each round, only one-third of the schools remain in the competition to advance to the state competition. A total of 729 schools start the competition write an exponential function to describe the number of school remaining after x rounds.

Step-by-step explanation:

We are given the following in the question:

Number of schools in the starting of the competition = 729

Number of schools remaining after each round =

We have to model an exponential function to describe the number of school remaining after x rounds.

is the required function, where f(x) gives the number of school remaining after x rounds.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

she drove 134 miles

step-by-step explanation: