Answer: 19.4
Step-by-step explanation:
Given
Profit is given in terms of the selling price

to get the maximum price, differentiate y w.r.t x

Put
to get maximum value

Thus, the company must sell it at 19.4
Answer:

Step-by-step explanation:
<u>Solving</u>
(Not a required step)




<u>Graphing</u>
<u>I'll assume you need to find the equation of the line that passes through those points.</u>
Answer:

Step-by-step explanation:
<u>Equation of a Line:</u>
The equation of a line passing through points (x1,y1) and (x2,y2) can be found as follows:

The given points are (-4,2) and (12,6), thus:

Operating:

Simplifying, the equation in point-slope form is:

Answer:
B
Step-by-step explanation:
Recall that if two functions, <em>f</em> and <em>g</em>, are inverses, then by definition:

Hence, the graph of f(g(x)) should be simply <em>y</em> = <em>x</em>.
Therefore, our answer is B, as both coordinates are equivalent for all three points.