Line ab goes through the points a (0,-4) and b (6,2). which equation represents line ab?

y = x - 4

Step-by-step explanation:

Base on point A we have X = 0 and Y = -4

then we have this equation:

Y = ax + b

<=>-4 = a*0 + b

<=>-4 = b

so equations have the form of Y = ax - 4

Base on point B we have X = 6 and Y = 2

Y = ax - 4

<=>2 = a* 6 - 4

<=>a * 6 = 6

<=>a = 1

so equations have the form of Y = 1x - 4 = x - 4

so the equations represents line AB is Y=x - 4

Done :))

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option