Quadratic bingo

Exercise and reference answers

Clues and terms

1. Clue

   Equation of the form ax squared plus bx plus c equals zero.

   Item

   Quadratic

2. Clue

   Terms written in descending order of degree.

   Item

   Standard form

3. Clue

   A number that satisfies the equation.

   Item

   Root

4. Clue

   Splitting into two linear factors set to zero.

   Item

   Factorisation

5. Clue

   b squared minus 4ac.

   Item

   Discriminant

6. Clue

   What a zero discriminant gives.

   Item

   Equal roots

7. Clue

   What a negative discriminant gives.

   Item

   No real roots

8. Clue

   Derived the quadratic formula in 1025.

   Item

   Sridharacharya

9. Clue

   Checking word-problem answers against the original conditions.

   Item

   Verification

Instructions

Read each clue and tap the term it describes.

Explanation