A new toy hits the local store. Sales (in hundreds) increase at a steady rate for several months, then decrease at about the same rate. This can be modeled by the function S(m)=-0.625\left|\mathrm{m}-8\right|+5S(m)=−0.625∣m−8∣+5 In what month(s) were 400 toys sold? A) 7th and 10th B) 5th C) 5th and 11th D) 4th and 12th

Option A.

Step-by-step explanation:

It is given that, sales (in hundreds) for several months can be modeled by the function:

We need to find the month in which 400 toys were sold.

Substitute S(m)=4 in the given function.

Now,

or

or

or

Approx the value to the next whole number.

or

It means, 400 toys were sold on 7th and 10th month.

Therefore, the correct option is A.

A B C

Step-by-step explanation: