The coordinate grid shows a pentagon. The pentagon is translated 4 units to the left and 9 units down to create a new pentagon. What rule describes this transformation? (x, y)--> (x + 4, y + 9)
(x, y)--> (x + 4, y - 9)
(x, y)--> (x - 4, y + 9)
(x, y)--> (x - 4, y - 9)

idkidkdidkdkdidkx

step-by-step explanation:

nndncnd cnn

snddnd

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct