All Flashcards
Given , find after shifting right 2 units and up 3 units.
- Horizontal shift: . 2. Vertical shift: .
Given , find after reflecting over the x-axis and stretching vertically by 2.
- Reflection: . 2. Vertical stretch: .
How to find the equation after reflecting over the y-axis and shifting left by 1?
- Reflection: . 2. Horizontal shift: .
Describe the steps to transform to .
- Shift right 1 unit: . 2. Vertical stretch by 2: . 3. Shift up 3 units: .
How do you determine the transformations from to ?
- Horizontal compression by a factor of 2. 2. Vertical shift down by 1 unit.
If , what is the equation after a horizontal stretch by 3?
Given , find the equation after reflection over the x-axis and shift down by 4.
- Reflection: . 2. Vertical shift: .
How to transform to ?
- Shift left 2 units: . 2. Reflect over x-axis: . 3. Shift down 1 unit: .
Describe the effect of on the graph of .
- Reflect over the y-axis. 2. Shift up by 2 units.
If , find the equation after a vertical compression by a factor of 0.5 and a shift up by 2 units.
- Vertical compression: . 2. Vertical shift: .
Explain the effect of k in .
Shifts the graph vertically. moves the graph up, moves it down.
Explain the effect of h in .
Shifts the graph horizontally. moves the graph left, moves it right.
Explain the effect of 'a' in .
Scales the graph vertically. stretches, shrinks. reflects over x-axis.
Explain the effect of 'b' in .
Scales the graph horizontally. shrinks, stretches. reflects over y-axis.
Why does horizontal translation appear 'opposite'?
Because evaluates the function at a shifted x-value, requiring a shift in the opposite direction to achieve the same output.
How do transformations affect the domain and range?
Translations shift the domain/range, dilations compress/expand them, and reflections can change the direction of the range.
What is the order of transformations?
Horizontal transformations (shifts and stretches) before vertical transformations.
Explain how a vertical stretch affects the range of a function.
A vertical stretch multiplies the range values by the stretch factor, expanding or compressing the range.
Describe the impact of a negative 'a' value in .
It reflects the graph of over the x-axis, changing the sign of the y-values.
What happens to the x-intercepts after a vertical stretch?
The x-intercepts remain unchanged because the y-value at these points is zero, and multiplying zero by any factor still results in zero.
Vertical translation by k units:
Horizontal translation by h units:
Vertical dilation by a factor of a:
Horizontal dilation by a factor of 1/b:
Reflection over the x-axis:
Reflection over the y-axis:
General form of combined transformations:
How to represent a vertical stretch by a factor of 3?
How to represent a horizontal compression by a factor of 2?
Formula for shifting a function 5 units to the right?