Quadratic Roots and Discriminant

Having Real roots mean the discriminate is,

• greater than 0

• Less than 0

• Equal to 0

Having imaginary roots mean the discriminate is

• Greater than 0

• Less than 0

• Eqaul to 0

Using the quadratic equation, for this function f(x)=3x²+4x−8 step one is to let; A=3, B=4, C=8

• True

• False, A=-3, B=4, C=8

• False, A=3, B=-4, C=-8

• False, A=3, B=4, C= -8

• False, A=3, B=-4, C=-8

Using the quadratic equation, for this function f(x)=3x²+4x−8 the x intercepts of it graph will be

• 
• 
• 
• 

Solve by Quadratic Equation
4x²-7x+5=0

• (7±i√31)/8

• (-1±i√55)/8

• (-3±i√55)/4

• (1±i√57)/8

If the discriminant is positive, how many solutions and of what type?

• real solution

• real solutions

• complex solutions

If the discriminant is 13, how many solutions and of what type? 

• real solution

• irrational solutions

• rational solutions

• complex solutions

What is the discriminate of f(x) = 3x² - 5x + 8
and how many solutions does the function have?

• discriminate = -71 and two imaginary solutions

• discriminate = -121 and has two imaginary solutions

• the discriminate = - 71 and has two real solutions

• the disctiminate = -121 and has two real solutions

Will the following equation have an IMAGINARY answer
11x²-9x+3=0

• yes

• no

Solve by quadratic formula
5x²-10x-40=0

• 4,-2

• (-5±√103)/12

• (-5±√337)/12

• 1±i√7