Analyze and solve linear equations and pairs of simultaneous linear equations.
Analyze and solve pairs of simultaneous linear equations. (8.EE.8)
c. Solve real-world and mathematical problems leading to two linear equations in two variables. For example, given coordinates for two pairs of points, determine whether the line through the first pair of points intersects the line through the second pair. (8.EE.8c)
More information and the complete College and Career Readiness Standards can be found here.