aat 1/7-8 unit 3, lesson 3, inv 1. warm up ½ sheet of paper when you walked in! first 15 minutes!
TRANSCRIPT
AAT 1/7-8
Unit 3, Lesson 3, Inv 1
Warm Up
• ½ sheet of paper when you walked in! • First 15 minutes!
Solving for Maximum Value (p.209)Reasoning:1. Distributive
Property2. The function gives
height, height is zero when gymnast is on the trampoline3. Substitution
substitute the factored form for h(t)
Solving for Max Value ContinuedReasoning:4. Zero product rule
(product is zero when one of the factors is zero)
5. Multiplication and Addition properties of equality (solve for t)
6. Parabolas have an axis of symmetry – the maximum value should be the midpoint between t=0 and t=1.5
7. Translation of function notation into words
f(x) =x(x-5)
a. Find the zeros – or find all x for which f(x) = 0
b. Sketch a graph
c. Produce the graph on a calculator
Zeros:x = 0 or (x-5) = 0x=0, x=5
Group Work
• #2 DO: b – h
• #3 a-e (p. 210) – Follow the same
steps but now you will have three zeros
a. Find the zeros – or find all x for which f(x) = 0
b. Sketch a graph
c. Produce the graph on a calculator
Write the equation from zerosZeros:f(4) = 0, f(1) = 0
Equation:f(x) = (x )(x )(x ) = 0 when x=4 (x ) = 0 when x=1(x – 4) = 0 when x=4 (x – 1) = 0 when x=1
f(x) = (x – 4 )(x – 1)
#4,5
OTL
• OYO Page 212 and factoring worksheet• Quiz Th/F