Category Archives: Algebra 1a

Algebra: Chapter 8, Lesson 4, page 373. Using systems of equations Steps to solve systems of equations can be: Graph the equations Substitution of one variable in terms of the other Adding or subtracting the 2 equations Before you start … Continue reading →

Algebra: Chapter 8, Lesson 3, page 367. Addition and Subtraction for 2 linear equations. You can add 2 (or subtract) linear equations together so that one of the variables cancels out. An example would be: `3x – y = 9` … Continue reading →

Algebra: Chapter 8, Lesson 2, page 362. Substitution Method You can solve 2 equations by solving 1 equation for 1 variable and then substituting that equivalent expression in the other linear equation. By doing this, you eliminate one variable. Solve … Continue reading →

Algebra: Chapter 8, Lesson 1, page 358. Solving Systems of Equations by Graphing A set of equations for which a common solution is sought is called a SYSTEM OF EQUATIONS. A solution of a system of 2 equations in 2 … Continue reading →

Algebra: Benchmark “#2” (Chapters 1, 2, 3, 4 and 7) Benchmark #2 today! ====================================================================== Algebra 1a: Chapter 3, Lesson 5, page 136. More on Solving Equations Solve equations by first getting all variables on the same side of the equation. … Continue reading →

Algebra: Chapter 7 Review for Algebra Benchmark #2 Algebra Skills Practice 19/20 and the Benchmark #2 Practice and Review were started in class. The end of the Chapter Review is a good overview and practice of the entire chapter. Remember, … Continue reading →

Algebra: Chapter 7 Review for Algebra Benchmark #2 Algebra Skills Practice 19/20 and the Benchmark #2 Practice and Review were started in class. The end of the Chapter Review is a good overview and practice of the entire chapter. Remember, … Continue reading →

Algebra: Chapter 7, Lesson 8, page 338. Parallel and Perpendicular Lines Parallel lines by definition have the same slope. So, for the equation of 2 lines, all we have to do is figure out what the slope is of them … Continue reading →

Algebra: Chapter 7, Lesson 7, page 333. Fitting Equations to Data “The mathematical relationship between 2 variables is of interest in many real-world situations. The relationship between 2 variables can often be expressed as a linear equation, which is calleda … Continue reading →

Algebra: Chapter 7, Lesson 6, page 328. Finding an Equation of a Line There are 2 ways that we can find an equation of a line. However, we need to have at least 2 points `(x,y)` or 1 point `(x,y)` … Continue reading →