Find the discriminant and the number of real roots for this equation.
4x2 + 12x + 9 = 0
a. -144; one real root
b. -144; no real roots
c. 0; one real root
d. 0; two real roots

idk

step-by-step explanation:

use that smart brain

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )