Adding functions (2:32) For
and
, Sal finds
Subtracting functions (2:16) For
and
, Sal finds
Multiplying functions (2:59) For
and
, Sal finds
.
Dividing functions (6:17) For
and
, Sal finds
.
Intro to composing functions (6:14) Three functions are given:
,
given by a table, and
whose graph is provided. Sal finds
,
, and
.
- * Practice: Type of problem: For
and
, evaluate
.
Evaluating composite functions (4:09) For
and
, Sal finds
.
Finding composite functions (2:56) For
and
, Sal finds
and
.
- * Practice: Type of problem: For
and
, find a formula for
.