### Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.3.1 > Problem 6-85

6-85.

Jai was solving the system of equations below when something strange happened.

Solve the system. What happened?

Use the substitution method and solve for

.(All Real Numbers)Graph the two lines on the same set of axes. What happened?

Put the equations in the

form.How does your graph in part (b) explain your result in part (a)?

What does the graph show about the points of intersection these lines have?