Welcome To Algebra Concept week semester 2(week 4) Mrs.Fardous Mrs. Beydoun

S.L.O.T g=6x , solve for x Day 1 Monday February 26, 2018 Objective: I can evaluate a function with a given value. S.L.O.T g=6x , solve for x U= x-k , solve for x

Evaluate Solve Plug in

Evaluate p+2q+ 3r given p = 2 q = 4, r = 6 =2+ 2(4) + 3(6) =2 + 8 + 18 =28

Example : Evaluate 3c + 5 if c = 5 and d = 1 4d Solution : = 15 + 5 4 = 20 = 5

Which do you prefer to write? Function Notation The f is the name of the function machine and the value inside the parentheses is the input. The expression to the right of the equal sign shows what the machine does to the input. 25 Which do you prefer to write? Evaluate f when x = 25? OR 5

Example If f(x) = 2x + 3, find f(5). When evaluating, do not write f(x)! You want x=5 since f(x) was changed to f(5) You wanted to find f(5). So the complete final answer includes f(5) not f(x)

Solving g(x)=2x-1 g(0) g(-1) g(2)

Substitute and Evaluate Evaluating Substitute and Evaluate The input (or x) is 3.

I can evaluate functions Day 2 Tuesday February 27, 2018 Objectives: I can evaluate functions I can determine if a value is a solution for a given function S.L.O.T g=3c , solve for c s= x + k , solve for x

Day 3 Wednesday February 28, 2018 Objectives: I can evaluate functions I can determine if a value is a solution for a given function  

Solutions and evaluating Bingo Let g(x)=-5x +2, Find g(-1) g(-1)=7

Solutions and evaluating Bingo Let g(x)=-5x +2, Find g(3) g(3)=-13

Solutions and evaluating Bingo Is (0,2) a solution for g(x)=-5x +2, YES

Solutions and evaluating Bingo Let f(x)=4x-2, Find f(1) f(1)=2

Solutions and evaluating Bingo Is (-2,4) a solution for f(x)=4x-2 NO

Solutions and evaluating Bingo Is (0,-2) a solution for f(x)=4x-2 YES

Solutions and evaluating Bingo Is (3,10) a solution for f(x)=4x-2 YES

Solutions and evaluating Bingo  

Solutions and evaluating Bingo  

Solutions and evaluating Bingo  

S.L.O.T I can evaluate functions Day 4 Thursday March 1, 2018 Objectives: I can evaluate functions I can determine if a value is a solution for a given function S.L.O.T D=rt , solve for t L+w+h=2, solve for L

QUIZZIZ IXL 3 REVIEW