Answer:
a) 31.25
b) 30
Step-by-step explanation:
The price function is given as:
[tex]\mathbf{P(x) =\left \{ {1.25x \ for \ x \ \leq \ 25} \atop {1.20x \ for \ x \ > \ 25}} \right. }[/tex]
Find:
[tex]\mathbf{ \lim_{x \to 25^-} P_{(x)}}[/tex]
[tex]\mathbf{ \lim_{x \to 25^+} P_{(x)}}[/tex]
[tex]\mathbf{P(x) =\left \{ {1.25x \ for \ x \ \leq \ 25} \atop {1.20x \ for \ x \ > \ 25}} \right. }[/tex]
[tex]\mathbf{ \lim_{x \to 25^-} P_{(x)} = 1.25 * 25} \\ \\ =31.25[/tex]
[tex]\mathbf{ \lim_{x \to 25^+} P_{(x)} = 1.20 * 25} \\ \\ =30[/tex]