This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Grenzrate der Substitution Tangens.svg en Indifference curve including angles for trigonometric derivation of MRS own Pajz cczero Uploaded with Indifference curves
Page 2023 Free-images.com. All images are Public Domain