Which of the following functions is a direct variation? f(x) = 2x__ f(x) = 2 __f(x) = x + 2 these are my answer choice ive separated them with a __

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

the correct answers i think are b. and d.

give me brainliest if it is correct!