Alg 1 Unit 3 Solving Systems Review

Which of the following is NOT a method for solving a system of linear equations?

Match the number of solutions of a system and what the graph of the system would look like.

Use Desmos to solve the system by graphing.

$$y=2x-3$$

$$y=-\frac{1}{2}x+12$$

Which graph shows the correct solution for the system?

$$y=\frac{2}{3}x-1$$

$$4x-6y=-8$$

Put the steps to solve the system using substitution in order.

$$y=x+5$$

$$x+2y=4$$

Put the steps to solve the system using elimination in order.

$$x-2y=-2$$

$$4x+2y=42$$

$$y=2x+3$$

$$3x-4y=9$$

The best method to solve the system shown is:​ (a)  

$$2x-4y=18$$

$$6x+4y=-24$$

The best method to solve the system shown is:​ ​ (a)  

TJ and Meredith go to the movies. TJ buys one soda and three bags of candy and spent $11.25. Meredith buys one soda and one bag of candy and spent $6.25. Write a system of equations to model the situation.

TJ and Meredith go to the movies. TJ buys one soda and three bags of candy and spent $11.25. Meredith buys one soda and one bag of candy and spent $6.25. Solve the system to determine the price of a soda and the price of a bag of candy.