Algebra Flashcards
Vertical translations shift because of outputs or inputs? Which direction do they shift
Outputs shift up or down
When does the x-intercept stay the same when you reflect
When doing a reflection in the x-axis
What happens when you multiply the output by -1 in a reflection on the x-axis
Multiplying the whole problem by negative one changes the sign for only the outputs but not inputs
What happens to the inputs when reflecting over the y-axis
Their sign changes because you’re multiplying by negative one but outputs stay the same
What does it mean when a is in parenthesis?
It is a horizontal adjustment
How do you know it’s a horizontal shrink?
When a is greater than one
What do you multiply when a is affecting a horizontal adjustment
Just the x in the input and it’s the reciprocal of a
What does a have to be to be a horizontal stretch?
Between zero and one
Where does a have to be for a vertical adjustment?
Outside the parenthesis
What does a affect in a vertical adjustment?
Everything outside the parenthesis
What does a have to be when stretching vertically
Greater than one
When does a have to be when shrinking vertically
Between zero and one
Which intercept stays the same when stretching vertically
X
Which intercept stays the same when you stretch horizontally
Y
Horizontal Translations
Inputs shift left or right
(X-h) shift right
(X+h) shift left
OPPOSITE OF WHAT YOU EXPECT
