We're interested in where the function f(x) intersects the horizontal line y=k.
The only place where a horizontal line y=k can cross f(x) three times is when k is between the local minimum and the local maximum, so from about -4 to -2.5. So we get choice (D).
Answer:
7
Step-by-step explanation:
first put them in order
5,6,6,8,9,9
now the ones that are in the middle are 6 and 8 so we find the average by adding them then dividing by 2
6+8=14/2=7
Answer:
<h2><em><u> 42.8 in</u></em></h2>
Step-by-step explanation:
Step one:
given data
we are told that the expression for the depth of a lake after x years is given by

Required
The value of y when x= 4
Step two:
substitute the value of x in the expression to get y

<em><u>After 4 years the depth will increase by 42.8 in</u></em>
answer.next time out the graph
Step-by-step explanation:
(W-t) /u ) -v. Is what the equation is