math class 9

1. Write the quadratic equation given roots x = 2 and

x = 3

• (x² + 5x +6 = 0)

• (x² + 5x -6 = 0)

• (x² - 5x +6 = 0)

• (x² - 5x -6 = 0)

What are the roots of x² + 6 x = 0 ?

• (x = 0 and x = -6)

• (x = 0 and x = 6)

• (x = 6 and x = -6)

• (x = 1 and x = -6)

Write the missing term in the blank of the equation x² -____ +9 to make the expression a perfect square trinomial.

• 3x

• 2x

• 5x

• 6x

1. Find the range of quadratic function y = 1 – 4x - 2x² ([y/y≤3])

• ([y/y≤1])

• ([y/y≤3])

• ([y/y≤5])

• ([y/y≤0])

1. Determine the equation whose roots are the reciprocals of the roots of the equation 3x² - 13x – 10 = 0

• (13x² + 13x – 3 = 0)

• (13x² + 10x – 3 = 0)

• (10x² + 13x + 3 = 0)

• (10x² + 13x – 3 = 0)

1. What happens to S when t is tripled in the equation S = 2t?

• S is also tripled

• S is doubled

• S will be four times as t

• S = t

Find the vertex of the graph of y = x² - 4x + 7

• (2,2)

• (3,3)

• (-2,3)

• (2,3)

1. Identify the line of symmetry in the given vertex (-2, -15)

• (x = 2)

• (x = -1)

• (x = -2)

• (x = -15)

Solve for k in kx² +2x + 1 = 0

• k= 1

• k=2

• k= 3

• k=0

1. Identify the values of a, b and c of the given

equation 3(x + 2)² = 6

• (a = 3, b=2, c=6)

• (a = 3, b=12, c=3)

• (a = 3, b=12, c=6)

• (a = 3, b=2, c=6)