QUIZ When done turn in the quiz to
- Slides: 25
QUIZ When done, turn in the quiz to the back and pick up a parent function chart and fill it out 6/18/2021 7: 44 AM Parent Functions 2
6/18/2021 7: 44 AM Parent Functions 3
PARENT FUNCTIONS Revised © 2014 Viet. dang@humble. k 12. tx. us 6/18/2021 7: 44 AM Parent Functions 4
WHAT IS A PARENT FUNCTION? A. The parent function is the simplest function with the defining characteristics of the family. Functions in the same family are transformations of their parent function. B. There are main parent functions that are utilized through Algebra. They are the following: 6/18/2021 7: 44 AM Parent Functions 5
PARENT FUNCTIONS Family Constant Linear Quadratic Cubic Rule f(x) = c f(x) = x 2 f(x) = x 3 Graph Table x – 2 – 1 0 1 2 y c c c y – 2 – 1 0 1 2 y 4 1 0 1 4 y – 8 – 1 0 1 8 Domain Range 6/18/2021 7: 44 AM Parent Functions 6
PARENT FUNCTIONS Family Square Root Cubic Root Reciprocal/Rational Absolute Value Exponential Rule f(x) = √x f(x) = 3√x f(x) = 1/x f(x) = |x| f(x) = 2 x Graph Table x 0 1 4 9 x – 8 – 1 0 1 8 x – 2 – 1 0 1 2 y 0 1 2 3 y – 2 – 1 0 1 2 y –. 5 – 1 D NE 1 . 5 y 2 1 0 1 2 y 1/4 1/2 1 2 4 Domain Range 6/18/2021 7: 44 AM Parent Functions 7
SCALE FACTOR (SCALAR) A. The equation will now look like, y = a(x – h) + k 1. _h_ stands for the Horizontal Shift 2. _k_ stands for the Vertical Shift B. The standard points will now be adjusted by the scalar (a) C. Multiply a with the x–values of the standard points. D. The scalar does not affect the new origin. 6/18/2021 7: 44 AM Parent Functions 8
VERTICAL SHIFTS OF A For shifts of A of ax 2 + bx + c = y, the bigger the A, the smaller the graph gets. 6/18/2021 7: 44 AM Parent Functions 9
VERTICAL SHIFTS OF C For shifts of C of ax 2 + bx + c = y, the change of the C, the y– intercept shifts up or down 6/18/2021 7: 44 AM Parent Functions 10
HORIZONTAL SHIFTS For shifts of A of f(x)= a(x – h)2 + k, the change of the h, the graph shifts either left or right If the equation is… ADDED, it moves to the LEFT SUBTRACTED, it moves to the RIGHT 6/18/2021 7: 44 AM Parent Functions 11
REFLECTION SHIFTS For horizontal shifts of f(x)= –a(x – h)2 + k or others, the change of the a, the graph shifts reflects on the axis 6/18/2021 7: 44 AM Parent Functions 12
LET’S DANCE 6/18/2021 7: 44 AM Parent Functions 13
AEROBIC MOVES 6/18/2021 7: 44 AM Parent Functions 14
EXAMPLE 1 Given the graph of f(x) = x – 3, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 15
EXAMPLE 2 Given the graph of f(x) = 2 x, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 16
YOUR TURN Given the graph of f(x) = (1/2)x + 5, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 17
EXAMPLE 3 Given the graph of f(x) = (x + 1)2 – 3, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 18
EXAMPLE 4 Given the graph of f(x) = –|x – 2| + 4, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 19
EXAMPLE 5 Given the graph of f(x) = y = – 2(x – 3)3 + 1, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 20
YOUR TURN Given the graph of f(x) = (x – 1)2 – 4, determine the domain, range, and transformation change in Interval Notation 6/18/2021 7: 44 AM Parent Functions 21
EXAMPLE 6 Given a linear parent function, the shift of the equation is 4 units up, determine the equation. 6/18/2021 7: 44 AM Parent Functions 22
EXAMPLE 7 Given an absolute value parent function, the shift of the equation is 4 units down and 2 units to the left, determine the equation. 6/18/2021 7: 44 AM Parent Functions 23
YOUR TURN Given a quadratic parent function, the shift of the equation is 3 units down and 4 units to the left, determine the equation. 6/18/2021 7: 44 AM Parent Functions 24
ASSIGNMENT Worksheet 6/18/2021 7: 44 AM Parent Functions 25
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