FUNCTIONS & THEIR GRAPHS

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Presentation transcript:

FUNCTIONS & THEIR GRAPHS Sec 3 continued FUNCTIONS & THEIR GRAPHS

ii. Evaluating a function Ex. 1 If f(x) = x² + 7, evaluate A. f(3a) B. f(b-1) C.

II. Finding domain & range Domain is all the ___ - values. Range is all the ___ - values. Ex. 2 Find the Domain and Range A. B. f(x) = tan x C.

Iv. Composite functions f and g are functions. Then (f ◦ g)(x) = f(g(x)) is the composite of f with g. Ex. 1 f(x) = 2x – 3 and g(x) = cos x Find A. f ◦ g B. g ◦ f Are the two composite functions equal?

Graphing composite functions Do the composite functions worksheet.

Solve the equation 𝑥 𝑥+6 = 𝑥 −4 4

homework pg 27 #1-7 odds, 21-25, 52-54, 57 Unit 1 Test Tomorrow!