Is the following statement true or false?

every diameter of a circle is a chord.
justify.

(i know it's true but could someone because im stuck on how i should word it)

What is the inverse of the function f(x) = 2x + 1?

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

What can you determine about the solutions of this system