Category Archives: Algebra 1a

Algebra: Chapter 13, Lesson 1, page 576. Introduction to Quadratic Equations An equation that can be written in the form of `ax^2 + bx + c = 0` is a quadratic equation. This is the “standard form”. The solutions of … Continue reading →

Algebra: Chapter 11 BENCHMARK! ====================================================================== Algebra 1a: CST Review – X-Y Graphing and more square root review! Remember to graph, x (sideways) and y (vertically) and you’ll be OK!

Algebra: Chapter 12, Lesson 4, page 552. Quadratic Functions A quadratic function is defined by `f(x) = ax^2 + bx + c`. To make it easier, just replace the `f(x)` with `y` and treat as you have done in the … Continue reading →

Algebra: Chapter 12, Lesson 1 and Lesson 2, page 536 and 542. Relations and Functions and Graphs A relation is a set or ordered pairs. The domain of a relation is the set of first coordinates (the x’s). The range … Continue reading →

Algebra: Chapter 11 Review! ====================================================================== Algebra 1a: CST Review Square Roots: The `sqrt(25) = 5`. The `sqrt(5)` can be approximated as somewhere between the `sqrt(4)` and the `sqrt(9)`. `sqrt(9)=3` `sqrt(5) = ?` `sqrt(4)=2`, so `sqrt(5)` is closer to `sqrt(4)` than … Continue reading →

SNOW DAY #5

Algebra: Chapter 11, Lesson 9, page 519. Equations with Radicals A radical equation contains a variable in the radicand. To solve radical equations, first convert them to equations without radicals. Just like taking the square root of 2 sides of … Continue reading →

Algebra: Chapter 11, Lesson 7 and Lesson 8, page 509 and 514. Theorem of Pythagoras and its Uses `c^2 = a^2 + b^2`, where `a`, `b` and `c` are the sides of a RIGHT TRIANGLE. `a` and `b` are considered … Continue reading →

Algebra: Chapter 11, Lesson 7 and Lesson 8, page 509 and 514. Theorem of Pythagoras and its Uses `c^2 = a^2 + b^2`, where `a`, `b` and `c` are the sides of a RIGHT TRIANGLE. `a` and `b` are considered … Continue reading →

Algebra: Chapter 11, Lesson 6, page 504. Addition and Subtraction of Radical Expressions To add and subtract radical expressions, you can use the same distributive property we have used in the past. You may have to rationalize the denominator and … Continue reading →