Using Calculus to Solve for Best Reply Functions

[@juanvieragarcia1882]

Honestly, super helpful video, thank you!

[@KatherineSilzCarson]

I am glad you found it helpful, Juan! Thank you for watching!

[@ericcarson342]

Wish I found you before I graduated last year. Enjoying the review. Thank you for posting.

[@KatherineSilzCarson]

Glad that you found it helpful. Thank you for watching!

[@shouryachettri9295]

Beautifully explained. Helped me a ton. Can't thank you enough.

[@KatherineSilzCarson]

Thank you for your comment, and thank you for watching!

[@ignaciocortes9545]

where did you get the 5/4a_2 from? great video thank you

[@KatherineSilzCarson]

Hi Ignacio - Sorry for the delayed reply. I assume your question refers to about 8:06 minutes into the video. To solve for a2, I need to get all the expressions with a2 on one side of the equals sign, and everything else on the other side. The first step is to add 1/4(a2) to both sides of the equation. On the right hand side, these two terms cancel. Since there is already an a2 on the left hand side, I have 1*a2, which is the same as (4/4)*a2 plus (1/4)*a2, which gives me (5/4)* a2 on the left hand side. Hope this helps! Thank you for watching!