Write an equation of the line containing the given point and perpendicular to the given line. express your answer in the form y=mx+b. (8,9); 4x+y=5

Graph the equation by plotting point x=2

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

I’m stuck on this equation, anyone got the answer?