quadratic equation class 10

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6
• x = -5/2, x =5
• x = -3/7, x =6
• x = -5/2, x = 7

Solve the following quadratic equation...

x² + 9x + 20 = 0

• x = -2

  x = -10

• x = -5

  x = -4

• x = -1

  x = -20

• x = 4

  x = 5

If  $\frac{1}{2}$  is a root of the equation   $x^2\ +\ kx\ -\ \frac{5}{4}$  then the value of k is

• 2

• -2

• 3

• -3

The positive root of  $\sqrt{3x^2\ +\ 6}\ =\ 9$  is  

• 3

• 5

• 4

• 7

Say 'TRUE' or 'FALSE'
Every Quadratic equation has exactly one root

• TRUE
• FALSE

Can 0 be a root of a quadratic equation?

• Yes. Possible
• No. Not posssible

Can both the roots of quadratic equation be zero?

• Yes. Possible
• NO. Not possible

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6
• x=3 or x=2
• x=-3 or x= 2
• x=-1 or x=6

In the expression 4x²-5x+9 the leading coefficient is

• 9
• -5
• -4
• 4