Mathematics and General Knowledge Quiz

What is the product of the roots of the equation x² + 8x + 7?

• -14

• -7

• 17

• 7

How far did the object fall from its starting point if it followed the path of the function f(x) = -x² + 8x - 7?

• 7 m

• 3 m

• 6 m

• 1 m

What is the largest root of the equation -x² - 12x - 35?

• 5

• 7

• -5

• -7

How many sides does a polygon with 20 diagonals have?

• 6 sides

• 5 sides

• 9 sides

• 8 sides

Which formula is used to determine the number of diagonals in a polygon?

• d = n(n - 3)/2

• d = n(n + 3)/2

• d = n² - 3n

• d = n² + 3n

What is the discriminant of the equation x² + 8x + 7?

• 36

• 16

• 28

• 64

Which method is used in the demonstration of Bhaskara's formula?

• Substitution

• Graphing

• Factoring

• Completing the square

What is the value of the discriminant for the equation -x² - 12x - 35?

• 140

• 4

• 16

• 144

What is the formula for Bhaskara's method?

• x = b ± √Δ / 2a

• x = -b ± √Δ / 2a

• x = -b ± √Δ / a

• x = b ± √Δ / a

What is the value of Δ for the equation -x² + 8x - 7?

• 36

• 28

• 64

• 16