Algebra 1

Quadratic Functions flashcards

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What does parent function mean?Parabolas and Transformations
The baseline quadratic graph used for transformations.
What is its least output over real x?Parabolas and Transformations
Zero.
How would you define horizontal and vertical shifts?Parabolas and Transformations
Moving a parabola without changing its basic shape.
Why does x−h shift right for positive h?Parabolas and Transformations
The squared term becomes zero at x=h.
What is meant by stretch and reflection?Parabolas and Transformations
The effect of the leading multiplier on a parabola.
Does negative a move the vertex by itself?Parabolas and Transformations
No, it changes opening direction.
What does vertex mean?Vertex and Axis
The point where the graph switches direction.
What does k represent in vertex form?Vertex and Axis
The vertex y-coordinate.
How would you define axis of symmetry?Vertex and Axis
The mirror line of a vertical parabola.
Do symmetric points share the same output?Vertex and Axis
Yes, for equal offsets from h.
What is meant by minimum and maximum?Vertex and Axis
The extremum determined by opening direction.
Why state the domain?Vertex and Axis
A restricted input interval can change the contextual extremum.
What does factored form mean?Intercepts and Forms
A product form displaying x-intercepts.
What if both roots are the same?Intercepts and Forms
The graph touches the axis at a repeated root.
How would you define quadratic standard form?Intercepts and Forms
A sum form displaying the constant and y-intercept.
Does c always describe a physical start?Intercepts and Forms
Only if x=0 is meaningful in the domain.
What is meant by converting quadratic forms?Intercepts and Forms
Rewriting a quadratic without changing its graph.
Why use vertex form?Intercepts and Forms
It makes the turning point easy to read.
What does quadratic optimization mean?Maximum and Minimum Models
Using a quadratic turning point for a best or worst value.
Can an algebraic vertex lie outside a contextual domain?Maximum and Minimum Models
Yes, so it may not be the feasible optimum.
How would you define units and meaning?Maximum and Minimum Models
Interpreting both coordinates of an extremum.
Why not report only the vertex number?Maximum and Minimum Models
A vertex is an ordered pair with two meanings.
What is meant by model limitations?Maximum and Minimum Models
Respecting domain and evidence in an optimization claim.
Why restrict a projectile model to nonnegative time?Maximum and Minimum Models
Negative elapsed time is outside the described event.
What does first differences mean?Comparing Linear, Exponential, and Quadratic
A constant additive rate across equal input intervals.
Can a finite table alone prove a unique formula?Comparing Linear, Exponential, and Quadratic
No, many functions can match finitely many rows.
How would you define second differences?Comparing Linear, Exponential, and Quadratic
A constant difference of first differences.
Why require equal input spacing?Comparing Linear, Exponential, and Quadratic
The simple difference test assumes equal steps.
What is meant by ratios and context?Comparing Linear, Exponential, and Quadratic
A constant multiplicative rate across equal time steps.
Why compare units and domain as well as patterns?Comparing Linear, Exponential, and Quadratic
A numerical pattern may be unreasonable outside its context.