1st person to answer gets ! which expression represents x^2-8x+16 in factored form? a. (x-4)^2 b.(x+4)(x-4) c.(x+4)^2

(x-4)^2

Step-by-step explanation:

First multiply the outer coefficients 1 and 16: 1x16=16.  Now, the name of the game is to try to figure out if 16 has factors that when added or subtracted will give you the middle term -8.  List factors of 16: 1x16, 2x8, 4x4.  By looking at these pairs of numbers we can see that 4 and 4 will give you 8 but specifically -4-4=-8 and so:

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)