What does it mean to reflect a graph across the x-axis?

The y-values of the function are multiplied by -1.

What is the vertex of a parabola?

The highest or lowest point on the graph of a quadratic function.

What is the axis of symmetry in a parabola?

A vertical line that divides the parabola into two mirror images.

What does it mean to factor an expression?

To express it as a product of its factors.

What is the leading coefficient in a quadratic function?

The coefficient of the $$x^2$$ term.

What is the significance of the discriminant in a quadratic equation?

It determines the number and type of roots.

A U-shaped graph that represents a quadratic function.

bzdffbhsr Flashcards: 15 Cards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What does the transformation $f(x) = -(x + 3)^2$ represent?

Back

Reflected across x axis, left 3.

2.

FLASHCARD QUESTION

Front

What is the quadratic formula?

Back

The quadratic formula is $x = \frac{{-b \pm \sqrt{{b^2 - 4ac}}}}{{2a}}$ .

3.

FLASHCARD QUESTION

Front

What are all the y values or outputs of a function called?

Back

Range.

4.

FLASHCARD QUESTION

Front

Estimate when the football hits the ground: 0.5 seconds, 4.0 seconds, 1.5 seconds, 2.7 seconds?

Back

2.7 seconds.

5.

FLASHCARD QUESTION

Front

Factor the expression: 9x^2 - 6x - 8.

Back

(3x + 2)(3x - 4).

6.

FLASHCARD QUESTION

Front

What is the domain of a function?

Back

The set of all possible input values (x values).

7.

FLASHCARD QUESTION

Front

What is a function?

Back

A relation where each input has exactly one output.

10.

FLASHCARD QUESTION

Front

What is the standard form of a quadratic equation?

Back

$y = ax^2 + bx + c$ .

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