The function of f(x) = (x-4)(x-2) What is the range of the function?
o all real numbers less than or equal to 3
all real numbers less than or equal to - 1
all real numbers greater than or equal to 3
all real numbers greater than or equal to - 1

D) All real numbers greater than or equal to -1

Step-by-step explanation:

The range is at least -1

All real numbers greater than or equal to -1

Step-by-step explanation:

f(x) = (x-4)(x-2) = x²-4x-2x+8

f(x) = x²-6x+8

f(x) = [(x)²-2(x)(3)+3²-3²]+8

f(x) = (x-3)²-9+8

f(x) = (x-3)²-1

The function has a least value of -1.

So, the range is also all real values greater than or equal to -1