How can i write 3 to "-1" and 2 to 1 , 1 to 3 , 5 to 0 and 7 to "-1" as an equation function

If you're just building a function, there's nothing stopping from simplify defining it as a function f : {1, 2, 3, 5, 7} -> {-1, 0, 1, 3} such that

In case it's not familiar to you, the notation f : A -> B simply means f is a function that maps elements in the set A to a single element in the set B ; I emphasize "single", because otherwise f would not be a function.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

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