Check out The Reveal for the New York Times’s graph we looked at this week. Also take a look at the comments, especially the shout-outs that students got for their catchy headlines. Next week, that could be you!
The third method of solving quadratics is to simply use the square root, but there’s a danger here: you still have two solutions. The + is built into the quadratic formula, but it still needs to be added here. And that falls to you, the solver!
Today’s lesson also included a brief revisit to word problems, this time resulting in a quadratic equation.
- Copy of class notes
- HW 3.14 – Quadratic Word Problems
- Lesson Video 1 (Solving a quadratic equation with radicals)
- Lesson Video 2 (Area word problems)
- Video Archive
Cumulative IXL Modules
- Solve a quadratic equation using the zero product property
- Solve a quadratic equation by factoring
- Solve a quadratic equation using the quadratic formula
- Solve a quadratic equation using square roots
- Multiply radical expressions
- Identify the direction a parabola opens
- Find the vertex of a parabola
- Find the axis of symmetry of a parabola
- From Algebra 1