
Quadratic Transformations
Presentation
•
Mathematics
•
8th - 9th Grade
•
Medium
Standards-aligned
JOSE PINA AGUILAR
Used 339+ times
FREE Resource
5 Slides • 14 Questions
1
Quadratic Transformations
You will learn how to identify changes to a PARABOLA when changing values from its function.
2
Parent Function
Parent Quadratic function y=x2
The simplest form of a quadratic equation.
a=1 (y=1x2)
3
Shift Up or Shift Down
When we add to C, the parabola shifts up.
When we subtract C, the parabola shifts down.
4
Multiple Choice
What steps transform the graph y = x2 to y = x2 + 8
shifted up 8 units
shifted down 8 units
shifted left 8 units
shifted right 8 units
5
Multiple Choice
y = x2 + 2
6
Multiple Choice
7
Multiple Choice
What would the equation for the new quadratic function be if it was vertically shifted up 3 units from the function f(x)=4x2+2?
g(x)=x2+3
g(x)=7x2+2
g(x)=4x2+3
g(x)=4x2+5
8
Open Up/Open Down
9
Multiple Choice
A quadratic is reflected down when the value of a is negative.
TRUE
FALSE
10
Multiple Choice
Will there be a reflection from graph y = x 2 - 7 to the graph y =x2
True
False
11
Multiple Choice
Will there be a reflection from graph f(x) = x2 to the graph of g(x) = -x2
True
False
12
Multiple Choice
Given f(x) = -x² , how did we transform from the parent function?
Horizontal shift left
Reflection over the x-axis
Vertical shift down
Vertical compression
13
Narrow or Wider
The bigger the a, the narrower the parabola. Also called a stretch.
The smaller the a, the wider the parabola. Also called a compression.
Reflection does not affect the width of the parabola.
14
Multiple Choice
Given f(x)=41x2 how did we transform from the parent function?
Vertical compression (wider)
Vertical stretch (narrower)
Shift down
reflection over x-axis
15
Multiple Choice
y = 1/3x2?
y = 1/3x2 is shifted up.
y = 1/3x2 is shifted down.
y = 1/3x2 is wider.
y = 1/3x2 is narrower.
16
Multiple Choice
Which quadratic would be the narrowest?
f(x)=21x2
f(x)=x2
f(x)=3x2
f(x)=5x2
17
Multiple Choice
Which list orders the quadratic functions from narrowest to widest?
y = x2
y = 4x2
y = 2x2 - 2
y = 0.5 x2
y = 0.5 x2
y = x2
y = 2x2 - 2
y = 4x2
y = 4x2
y = 2x2 - 2
y = x2
y = 0.5 x2
y = 2x2 - 2
y = 4x2
y = 0.5x2
y = x2
18
Multiple Choice
How did we transform from y=x2
-------> y = 51 x2-2
vertical reflection and vertical shift down
vertical Compression
and shift down
Vertical stretch and shift up
reflection and vertical compression
19
Multiple Choice
How did we transform from y=x2
-------> y =-3x2+4
Quadratic Transformations
You will learn how to identify changes to a PARABOLA when changing values from its function.
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