Category Archives: Algebra 1a

Algebra 1: CST Review – Standards 9, 10, 12, 13, 14 and 15 Review Packet (day #1) 36 Problems, use the textbook and your notes and your BRAIN. You can do these! ====================================================================== Algebra 1a: CST Review – Volume of … Continue reading →

Algebra 1: CST Review – Standards 2, 4, 5, 6 and 7 Review Packet (day #2) 58 Problems, use the textbook and your notes and your BRAIN. You can do these! ====================================================================== Algebra 1a: CST Review – SURFACE AREA Don’t … Continue reading →

Algebra 1: CST Review – Standards 2, 4, 5, 6 and 7 Review Packet 58 Problems, use the textbook and your notes and your BRAIN. You can do these! ====================================================================== Algebra 1a: CST Review – SURFACE AREA Don’t forget SURFACE … Continue reading →

Algebra: Chapter 13, Lesson 7, page 602. Using Quadratic Equations Word problems need to be thought out before starting. Draw pictures and understand what information you know and what you need to find out. With DRT problems, you may need … Continue reading →

Algebra: Chapter 13, Lesson 6, page 598. Solving Radical Equations We can solve radical equations by first using the principle of squaring to find the quadratic equation. Remember, squaring a square root results in the stuff under the radical being … Continue reading →

Algebra: Chapter 13, Lesson 5, page 595. Solving Rational Equations Remember, we solve rational equations by multiplying both sides by the LCM of all the denominators. This can result in a quadratic equation. Sometimes, there can be extraneous solutions, so … Continue reading →

Algebra: Chapter 13, Lesson 4, page 589 (day #2). The Quadratic Formula, finally! Given that `ax^2 + bx + c = 0`, then the quadratic formula `x = (−b±sqrt(b^2−4ac))/(2a)` gives the solutions of the quadratic equation. This requires that the … Continue reading →

Algebra: Chapter 13, Lesson 4, page 589. The Quadratic Formula, finally! Given that `ax^2 + bx + c = 0`, then the quadratic formula `x = (−b±sqrt(b^2−4ac))/(2a)` gives the solutions of the quadratic equation. This requires that the quadratic equation … Continue reading →

Algebra: Chapter 13, Lesson 3, page 586. Solving quadratics by completing the squares We can use the technique of completing the square to solve quadratic equations. Recall that the addition property allows us to add a number to both sides … Continue reading →

Algebra: Chapter 13, Lesson 2, page 580. More Solving Quadratic Equations Solve a quadratic equation of the form `ax^2 = k` Example: `-3x^2 + 7 = 0` becomes … `-3x^2 = -7` or `x^2=7/3` then `x = ±sqrt(7/3)`, don’t forget … Continue reading →