Grade 9 Online Math Quiz Bee - District Level

Which of the following is the standard form of the quadratic equation 2r = r² + 15?

• – r² + 2r + 15 = 0

• r² - 2r + 15 = 0

• – r² + 2r + 15 = 0

• r² + 2r -15 = 0

For the equation -3x² – 6x – 5 = 0, what is the product of the roots?

• $\frac{4}{5}$

• $\frac{5}{3}$

• $\frac{2}{3}$

• $\frac{7}{3}$

Which of the following is the graph of quadratic function?

• 
• 
• 
• 

The sum of the roots of 4x² + 8x - 3 = 0 is _______.

• $-2$
  

• $12$
  

• $\frac{-15}{8}$

• $\frac{-8}{5}$

A square lot has an area of 400 sq. meters, what is the length of its side?

• 40m

• 100m

• 200m

• 20m

The area of a rectangular board in a classroom is 32 ft² while the perimeter measures 24 ft. What are

the dimensions of the board?

• 4 ft and 2 ft

• 6 ft and 3 ft

• 8 ft and 4 ft

• 10 ft and 5 ft

If 2x² - px + 8 = 0 has equal roots and p > 0, then the value of p is _____.

• 8

• 4

• 1

• 2

The length of the garden is 5m longer than its width and the area is 14 m². How long is the garden?

• 9m

• 7m

• 5m

• 2m

The area of one side of the rectangular garden is (2x+6) m² where x represents the width of the garden. Find the length and the width of the garden.

• L=5m, W=2m

• L=10m, W=3m

• L= 7m, W=4m

• L=14m, W=5m

Which of the following functions represents a quadratic function?

• $f\left(x\right)=3+2x^3$

• $f\left(y\right)=2y^2+3$

• $f\left(x\right)=3x-2^2$

• $f\left(x\right)=2^x-3$