Algebra 2 Trig Solving 2 x 2 Equations using no calc and using graphing calc.

1. Solve each system of equations by graphing on the coordinate plane below.

a. {

b. {

Solve the following systems of equations using the method of your choice, either substitution or

elimination.

2. 3.

2 1

3 2 3

y x

x y

4. 5.

3 5 6

4 2 5

x y

x y

4 3 16

2 3 8

x y

x y

x = y - 7

2y - 3x = 19

For the following problems, set up a system of equations and solve algebraically.

Example: Let x = the number of boys, let y = the number of girls.

6.) Amy took a test that had a math section and an English section. She earned a total score of 88. Her

math score was 6 points higher than her English score. What were her scores on each section?

7.) A front row ticket to a concert costs four dollars less than two times a lawn ticket. Five lawn tickets

and two front row tickets cost $100. Find the cost of each type of ticket.