
Bridge algebra 2 and trigonometry in a pre-calculus course for 11th–12th graders, serving as the capstone of the algebra one geometry sequence and preparing you for calculus.
Uncover a free open‑access pre‑calculus textbook with downloadable pdfs and optional hard copy, covering linear, polynomial and rational, exponential and logarithmic, trigonometric and periodic functions, and basics of analytic geometry.
Access the course textbook through the ebook resources, view it online or download a free PDF by following the provided link to its location.
Any errors of mine from the start to section 6 day 5 should be fixed in this 4 minute video.
Define a function as a mapping from each input to a unique output, using ordered pairs; relation is a set of pairs with domain as inputs and range as outputs.
Explore how domain and range define a function, using input-output mappings and blob notation, with examples like g(1)=8 and g(2)=6 to illustrate function notation.
I mixed up some table numbers (7 and 8) but I think I fixed it at the end.
Please try to do, starting at pg 29(39), problem numbers 1, 2, 6, 7, 60, 61, 62, 63, 64, 65, 66, 67
Analyze the difference between relations and functions, identify inputs and outputs, and practice reading function notation and solving f(x)=1 from the given tables.
Read pages 14-20 (pdf 24-30) and practice evaluating functions by substitution into f(x) and g(x); apply the foil method and distributive property to expand x^2+2xh+h^2.
Explore evaluating functions by substituting values into g(m) = sqrt(m - 4), solving g(m) = 2, and deriving y as a function of x from x - 8y^3 = 0.
Using figure seven to solve F of x equals one, locate where the graph has y equals one on figure nine; solutions are x equals zero and x equals two.
Do p29-30(39-40) 9,10,11,12,15,16,27,28,33,34
Note on the last problem, number 16, I forgot the square on the x so it is y equals plus or minus the square root of one minus x SQUARED.
Practice substituting values into function notation, evaluate f(-3) and f(2), then analyze f(-a) and a minus f(a), and expand f(a+h) for f(x) = -5x^2 + 2x - 1 with negatives.
the lecture demonstrates multiplying a plus h by itself using the distributive property and foiling (first, outer, inner, last), yielding a^2 plus two ah plus h^2, and notes commutativity.
Practice simplifying a rational expression by factoring and canceling common factors, revealing x plus a plus 2. Then evaluate k(2) and solve k(t)=7 to find t=4.
Explore function notation, inputs, and outputs; identify when a relation is a function; and demonstrate evaluating functions, foiling, factoring, and the zero product property.
Explore function basics by determining whether y is a function of x and evaluating f at specified inputs, while reviewing exponents and real-world notation in a GMP population problem.
I use the following free online graphing calculators:
https://www.geogebra.org/graphing?lang=en
https://www.graphcalc.com/online-graphing-calculator/
Explore evaluating piecewise and standard functions, applying exponent rules and square roots, and interpreting a real-world function linking population to garbage generation through problems 29, 35, 53, 73, and 88.
Assigns day four problems 21, 24, 32, 36, 40, 41, 54, 55, 56, 57. Explores function concepts, the derivative via the limit, and the vertical and horizontal line tests.
Explore functions with vertical line test and not a function cases, factor and apply zero product property, and preview calculus with a derivative expression, plus one-to-one and horizontal line tests.
Master the toolkit functions—constant, identity, absolute value, x squared, x cubed, reciprocal, reciprocal squared, square root, and cube root—and their graphs, domains, and use in building other functions.
Read pages 25–28 and pdf pages 35–38, work problems 37–39 and 89 to evaluate functions, solve quadratics, and relate cubic yards of dirt to garden area in square feet.
Master evaluating functions and solving equations using factoring, the zero-product property, and square roots through examples like f(5), f(7), and f(x)=4.
Learn to determine the domain of functions, including division by zero limitations and square root versus cube root cases, with problems 1–8 and 13–15.
Identify the domain of functions by examining valid inputs, including why square roots exclude negatives and cube roots do not, and express results with interval notation using brackets and parentheses.
Advance through unit six by reading pages 38–44 and solving problems 9,10,11,16,27,28,29,57,58,59, using hints to practice domain and range, the square root, and interval notation through repetition.
Practice solving domain and range from graphs, sketching piecewise and asymptote graphs, evaluating piecewise functions, and translating domain into interval notation, with a real-world projectile height example.
Explore average rate of change and slope by analyzing how y changes with x, using the interval formula, and practice problems 1,5,6,7,16,17,28–32 from the assigned pages.
Do p68(78) 3,7,18,19,22,23,26 p82(92) 1,5,6
If under 18 the parent or guardian must open the account. Depending on the length, this course will be either a whole or half course. The course will cover Algebra 2, Trigonometry, and Precalculus. The textbook can be viewed for free on openstax and is called Precalculus 2e. I plan to cover roughly 7 pages per day/unit. For each day/unit I plan to assign and go over about 10 problems. I may decide to split the course up into two parts. We will start with functions. After exploring the function concept we will look at one of the most basic: linear functions. Linear functions are among the simplest of the polynomial functions. After linear and polynomial functions we will then move to quotients, called rational functions. Then we will look at exponential and logarithmic functions. If we are able we will then move to trigonometry. We will look at trigonometeric functions as periodic functions. Then we will look at the various relations or identities between trigonometric functions. After looking at some related topics we will then go to systems of equations and inequalities. Then we go into analytic geometry to include conic section. Finally we will do sequences, series, and topics in calculus. This is enough material for two courses so we might split this into 2 classes.