Lesson 311 of 1524
8.11 Writing Quadratic Equations Given Real Solutions
Write the quadratic function f ( x ) = x 2 - 9 x + 20 in factored form
Practice this chapterWrite the quadratic function f ( x ) = x 2 - 9 x + 20 in factored form Graph the quadratic function f ( x ) = x 2 - 9 x + 20
Use the Desmos graphing tool or technology outside the course
Be able to find the standard form of a quadratic function given its zeros; find the standard form of a quadratic function given its graph; use the intercept form of a quadratic function to define a specific function given its zeros and a point.
Worked example
What does this chapter state?
- 1Write the quadratic function f ( x ) = x 2 - 9 x + 20 in factored form
- 2That claim is the chapter’s own statement.
- 3Answer from the claim, not from where the chapter sits in the book.
Result: Write the quadratic function f ( x ) = x 2 - 9 x + 20 in factored form
Why. The sentence is taken from this chapter’s summary or key concepts.
Answer with the meaning this chapter gives. A nearby idea from the same book is a different term.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.