9. Which set of coordinates describes a function? * 10 points A) {(-5, -1), (-3, -3), (-1, -5), (-5, -7)} B) {(6, 3), (4, 5), (2, 3), (0, 5)} C) {(4, -3), (-4, -6), (4, 3), (-4, 6)} D) {(2, 4), (2, -4), (4, 8), (6, 2)}

it should be a and d. lmk if i'm wrong xd

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2