SAT Math skill
Linear equations, linear functions, systems, and inequalities: about 35% of SAT Math.
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Learn how a linear function connects an equation, a table, and a straight-line graph, then practice finding slope and interpreting what it means.
Read articleA system’s solution is the point both equations agree on. See it on a graph, choose substitution or elimination with a simple decision flow, and spot no-solution and infinite-solution systems instantly.
Read articleMost inequality mistakes happen in translation or when dividing by a negative. Learn the phrase-to-symbol table, see solutions on a number line, and solve the word problems the SAT likes to ask.
Read articleMost word problems become easy once the equation is right. Learn the phrases that map to symbols, the “less than” trap, and how to interpret every number in a model.
Read articleSlope hides in every form of a linear equation. Learn to pull it out of standard form, point-slope form, or two points, and to recognize parallel and perpendicular lines instantly.
Read articlePractice Algebra
Turn an article into points: practice a few questions on this skill while the idea is fresh.