Determine which functions have two real number zeros by calculating the discriminant, b2 – 4ac. check all that apply. answer
f(x) = x2 + 6x + 8
g(x) = x2 + 4x + 8
h(x) = x2 – 12x + 32
k(x) = x2 + 4x – 1
p(x) = 5x2 + 5x + 4
t(x) = x2 – 2x – 15

By definition, we have that the discribinamte is given by:
 
 If the discriminant is greater than zero, then the function has two real roots.
 We then have to calculate the discriminant for each function:

 For
 
 The function has two real roots.

 For
 
 The function does not have two real roots.

 For
 
 The function has two real roots.

 For :
 
 The function has two real roots.

 For :
 
 The function does not have two real roots.

 For :
 
 The function has two real roots.

 
 functions have two real number zeros
 

Manual pipetting creates a musculoskeletal load on the neck, shoulders, and upper limbs and the type of injuries that this can lead to is called repetitive stress injuries.

The first answer is b. then the second one is a