Open GeoGebra. Plot the circle from Question 2 by entering the standard form of the equation in the Input window. (Use ^2 to represent an exponent of 2.) Then plot the same circle using the general form of the equation that was given in Question 1. (Placing your cursor over an equation in the Algebra margin will bold the circle that the equation corresponds to. By right clicking and selecting Equation, you can toggle between the different forms of the equation.) Next, drag the equations of the circles onto the screen from the Algebra margin. Verify that the circles resulting from the two equations are the same. Finally, paste a screenshot of your results in the space below.

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.