Need ! dont need an explanation i have like 5 ! which equation represents a linear function? y – 2 = –5(x – 2) x + 7 = –4(x + 8) y – 3 = y(x + 4) y + 9 = x(x – 1)

The first one. x and y only ever appear as first degree terms.

Second one, no y, third one xy isn't linear, fourth one x squared isn't linear.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

f(x)=4

step-by-step explanation: