F(x)=(x-4)^2-9 how to work equation

Parenthesis

Exponents

Multiplication (left to right; if division is first, do that first)

Division (left to right)

Addition (left to right; if subtraction is first, do that first

Subtraction (left to right)

So...

f(x) = (x-4)^2   -9

f(x)= x^2 - 4^2 - 9

f(x)= x^2 - 16 - 9

f(x) = x^2 - 7

Simplified! Now, this is a function. How this works is, you can put anything in for x. The information can then be used to create a table of values! :D to graph this, simply replace f(x) with y. Have fun!

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.