Category Archives: Algebra 1a

Algebra 1a: 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 = … Continue reading →

SNOW DAY #2

Algebra 1a: 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. … Continue reading →

Algebra 1a: 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 … Continue reading →

Algebra 1a: Chapter 7 Review for Benchmark #5 Test Tomorrow Algebra Benchmark #5 Review was worked on in class on Wednesday and Thursday. These problems are just EXACTLY the same as on the Benchmark, with just SLIGHTLY different numbers. Make … Continue reading →

Algebra 1a: Chapter 7, Lesson 10, page 344. Reasoning Strategies You can use the following strategies on the reasoning strategy problems in Chapter 7-10. Draw a diagram Make an organized list Look for a pattern Try, test and revise Use … Continue reading →

Algebra 1a: 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 … Continue reading →

Algebra 1a: 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 … Continue reading →

Algebra 1a: Chapter 7, Lesson 5, page 323 Equations and Slope An equation `y=mx+b` is called the slope-intercept equation of a line. The slope is `m` and the y-intercept is `b`. Without having to plot points, or make a T … Continue reading →

Algebra 1a: Chapter 7, Lesson 4, page 318. Slope of a Line The slope of a line is the tilt or slant. The slope is defined as the letter `m` and `m=(rise)/(run)`, where the `rise` is the change in the … Continue reading →