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Contemplanda

Core mathematics

Integrated Math 3

The college-prep pathway's third year, from inverse functions and logarithms through polynomials, trigonometry, and statistics.

5 units · 37 lessons · 779 practice items · 219 videos

Integrated Math 3 completes the college-prep integrated pathway. The opening unit reviews the features of functions and then learns to undo them: inverting a linear model, a quadratic model on a restricted domain, and an exponential model, where the logarithm first appears as the inverse of exponentiation, then confirming an inverse by composition and matching functions with their inverses across tables, graphs, rules, and descriptions. The units that follow develop logarithmic functions and their properties, then polynomial functions through end behavior, the fundamental theorem of algebra, and the remainder theorem. Rational functions and their graphs close the first semester. The second semester will take up cross sections and solids of revolution beside the trigonometric identities, the trigonometric functions on the unit circle and as models of circular motion, combining and composing functions to model, and a closing unit on normal distributions and sampling.

Practice follows the pathway's mastery loop: each skill draws randomized questions from shared banks until you answer four in a row, and the unit test draws from those same pools. Much of the entry happens in the notation of the subject, with an inverse rule typed as an expression, a restricted domain given as an interval, a table of values completed in place, and a graph you sketch on the axes yourself. Short videos sit beside the reading in nearly every lesson, and every unit ends in a test with a review-day practice form on the same page.

Syllabus

Every published lesson in this course, by unit. Upcoming units fill in as their lessons publish.

1Functions and their inverses6 lessons
  1. 1Reviewing function features and inverting a linear model
  2. 2Inverting a quadratic model on a restricted domain
  3. 3Undoing an exponential model: the logarithm as its inverse
  4. 4Function machines: finding an inverse and confirming it by composition
  5. 5Matching functions and inverses across tables, graphs, rules, and descriptions
  6. 6Unit 1 test and review-day practice form
2Logarithmic functions9 lessons
  1. 1Evaluating logarithms and ordering logarithmic expressions
  2. 2Graphing the parent logarithm and reading its features
  3. 3Translating logarithm graphs horizontally and vertically
  4. 4The logarithm of a product: expanding with the first property
  5. 5Quotient and power properties: expanding and condensing in any base
  6. 6Evaluating with known logarithms and solving logarithmic equations
  7. 7Solving exponential equations with common logarithms and the change-of-base identity
  8. 8Logarithms review: graphs, properties, and equations
  9. 9Unit 2 test and review-day practice form
3Polynomial functions11 lessons
  1. 1Building cubic growth from running totals and comparing families
  2. 2Ordering functions by how fast they eventually grow
  3. 3Describing and comparing end behavior across function families
  4. 4Adding, subtracting, and multiplying polynomials from their graphs
  5. 5Counting roots with the fundamental theorem of algebra and reading multiplicity
  6. 6Multiplying and dividing polynomials with the box method
  7. 7Applying the fundamental theorem of algebra to real and imaginary roots
  8. 8The remainder theorem: from one known root to every linear factor
  9. 9Writing a polynomial of least degree from its roots and a leading coefficient
  10. 10Graphing and solving polynomial functions: practice
  11. 11Unit 3 test and review-day practice form
4Rational functions10 lessons
  1. 1Rational expressions behave like rational numbers: simplifying and operating
  2. 2Solving rational equations and tracking excluded values
  3. 3Inverse variation in context: the first rational functions
  4. 4Intercepts, vertical asymptotes, and domain of a rational function
  5. 5Rewriting improper rational expressions in mixed form
  6. 6End behavior of rational functions from the degrees
  7. 7Even and odd functions: symmetry tests by algebra and by graph
  8. 8Sketching a rational function from its features and a sign line
  9. 9Rational function graphs: practice
  10. 10Unit 4 test and review-day practice form
ExamSemester 1 final1 lesson
  1. 1Semester 1 final
5Modeling with geometry and trigonometric identitiesUpcoming
6Trigonometric functionsUpcoming
7Modeling with function combinationsUpcoming
8Statistics: normal distributions and samplingUpcoming
ExamSemester 2 finalUpcoming