Quiz
quadratics - completing the square
This quiz has question types that open in the usual player.
Questions in this quiz (4)
1Write \( x^2-5x+8 \) in the form \( \left(x-a\right)^2+b \).
- A5/2
- B7/4
2and hence show that \( x^2-5x+8>0 \) for all values of \( x \).
\( x^2-5x+8>0 \) because [blank_start]...[blank_end]- Amin value is 7/4
3Sketch the graph of \( y=x^2-5x+8 \), showing the coordinates of the turning point.
- A8
- B(5/2, 7/4)
4If \( f \left( x \right) =x^2-5x+8 \) the graph of \( y=f \left( x \right) -10 \) will cross the \( x \) axis.
- ATrue
- BFalse
Information
- Description
- Quiz on quadratics - completing the square, created by Sally Everitt on 10/08/2020.
- Author
- Sally Everitt
- Language
- English
- Views
- 1
- History
- Created on 10 Aug 2020 · updated on 10 Aug 2020
- Tags
- Rating
- No ratings yet Rate this quiz