Page 9 of 13 · 76 explainers
Knowledge base
More explainers from the knowledge base. Each one names what you need to know first, works through the method, and says where it usually goes wrong.
Distinction GraphingSlope Intercept vs Standard Form vs Point-SlopeOne line, three ways of writing it. Each hides something and reveals something, and the question decides which trade you want.
Mistakes Graphing5 Common Slope Mistakes and How to Catch ThemFour of the five are caught by a rough sketch. Drawing the two points takes five seconds and settles the sign every time.
Examples GraphingSlope Intercept Form Examples: 9 Worked ProblemsNine problems, each adding one new difficulty. The last two are the ones that come up in exams and catch people out.
Formula GraphingThe Slope Formula and y = mx + bThree formulas, one line. Each is the same information arranged for a different question.
Concept GraphingWhat Is Slope? Rise Over Run ExplainedSlope is one number that says two things: which way a line leans, and how sharply. Everything else about it follows from that.
Application AlgebraQuadratic Equations in Real Life: Where They Turn UpAnything under constant acceleration, and anything where two lengths multiply, produces a quadratic. That covers a surprising amount of the physical world.