Common Core maths standard · High School Algebra

HSA-REI.D.11

Solve systems of linear equations exactly and approximately, focusing on where the graphs intersect. One game practises it.

High School · Algebra

Structure in expressions · Polynomials · Equations & inequalities

1 think & learn

Think & learn HSA-REI.C.6 · HSA-REI.D.11

Where two lines cross, both equations are true. Find the crossing — or prove there isn’t one.