Math 9 Quiz Bee

A quadratic equation is an equation of the form

• ax+b=c where a≠0

• a.ax+b=0 where a≠0

• a.ax^2+bx+c=0 where a≠0

• a.ax+bx^2=c where a≠0

The discriminant of ax^2+bx+c=0 where a≠0 is

• b/a

• The radicand in the quadratic formula

• √(b^2-4ac)

• a.The vertex of a parabola

The sum of the roots of 〖4x〗^2+8x-3=0 is

• 12

• -2

• -8/5

• 8/5

The coordinates of the vertex of y=x^2+5 is

• (1, -5)

• (0, 5)

• (-1, 5)

• (0, -5)

A perfect square trinomial is a trinomial of the form

• a^2+b^2

• a^2+ab+b^2

• a^2+2ab+b^2

• a^2+2ab+b^2

How many solutions does a quadratic equation have?

• 1

• 2

• 3

• 4

For what value of A will make y^2-5y+A be a perfect square trinomial?

• A=(-5)/2

• A=(-25)/2

• A=25/2

• A=25/4

What is the equivalent of 1+x^0?

• 1

• 1 + x

• 2

• x

Where will the graph of y=(〖x+2)〗^2-5 open ?

• left

• right

• up

• down

What is the vertex of the parabola y=(〖x+2)〗^2-5 ?

• (2, 5)

• (-2, 5)

• (-2, -5)

• (5, -2)