Vocabulary:
finding domains of functions
sum of functions
difference of functions
product of functions
quotient of functions
composition of functions
Bellringer:
g(x) = -f(x) + 2
g(x) = f(x + 2) -1
g(x) = f(-x - 5) + 8
Questions to think about?
Zero
1. We exclude from a function's domain real numbers that cause division by __________.
negative numbers are excluded from a
2. Real numbers that result in a square root of __________________
function's domain.
Function's Domain:
all real numbers (-∞, ∞)
except for two cases
1) the denominator cannot equal 0
2) even radicals must not be negative
Examples to think about and how to write the domain of the functions.
What do we have to think about?
Remember:
You Try It!