Domain and Range problem help

0 < N <= 200

700 < C <= 2700

Step-by-step explanation:

see my answer to the other very similar question with the sugar transport for the details of the reasons.

Domain is the valid interval of the input variable of the function.

Range is the interval of possible result or functional values of the function.

again, are negative values useful for the number of produced books ? no.

is 0 a useful value for the number of produced books ? no. it would mean running the machines empty. does not make sense.

for the max. costs caused by producing 200 books :

10×200 + 700 = 2000 + 700 = 2700

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i