Section 4 - Topic 5 Introduction to Systems of Equations
conide the following system of equations
Line 1:3x + y = 6
Line 2: 3x - y = 6
Port A: Graph the system of equafions below
Part B: What is the solution to the system of equations?
Part C: Explain how you know it is the solution.

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?