I need help with writing and graphing point-slope Form

Are the corresponding angles congruent? explain why or why not.

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.

P= price tax is 4% added to the price. which expression shows the total price including tax?