$2.)$ Here is a graph of the last month of Toyota stock prices, with some smoothing done by hand.

MOME $>$ TM $-$ NYSE

Toyota Motor Corp

$$251\mathrm{.}68,-4\mathrm{.}63\%+11\mathrm{.}13im$

Mar $28,8$:$04$:$00$ PM UTC$-4-$ USD $-$ NYSE $-$ Disclaimer $$

Based on the smoothed stock prices, answer the following questions:

a$.)$ When is the stock price curve concave down?

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b$.)$ When is the stock price curve concave up$?$

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c$.)$ As an investor, would you rather buy Toyota stock when the price is trending down with a positive second derivative or trending up with a negative second derivative? Why?

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Math $241$ Lab F

Zdes la$.$ dtak