Plz . which polynomials are prime? check all of the boxes that apply.
x2 + 9
x2 – 9
x2 + 3x + 9
–2x2 + 8

Polynomials which are prime is 1st and 3rd function and it can be determine by using the discriminent of the quadratic equation.

Given :

1st Function -

2nd Function -

3rd Function -

4th Function -

To determine which polynomial are prime, discriminent of the quadratic equation can be use.

D =

1st Function  

D = 0 - 36 = -36

Therefore, this polynomial is a prime.

2nd Function  

D = 0 + 36 = 36

Therefore, this polynomial is not prime.

3rd Function  

D = 9 - 36 = -27

Therefore, this polynomial is a prime.

4th Function  

D = 0 + 64 = 64

Therefore, this polynomial is not prime.

For more information, refer the link given below:

link

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

tangent

step-by-step explanation: