9/28/22 - Functions Review Flashcards
1
Q
Domain and range
A
Domain is inputs, range is outputs
2
Q
f(x) = 4x - 3 and g(x) = 2x + 7
What is f ∘ g or f composed with g?
A
4(2x + 7) - 3
3
Q
Interval notation: parentheses vs brackets
A
(2, 8) means all real numbers greater than 2 and lower than 8
[2, 8] includes 2 and 8
4
Q
What is a function?
A
-Pairing of inputs and outputs
-With a rule determining how pairing happens
-Each input yields 1 output
