What is the axis of symmetry of the quadratic function $$y=3x^2-12x-5$$ ?

The axis of symmetry is given by the formula $$x = -\frac{b}{2a}$$ . For this function, it is $$x=2$$ .

Convert the vertex form of the quadratic function $$y=-\left(x-2\right)^2-5$$ to standard form.

The standard form is $$y=-x^2+4x-9$$ .

Factor the quadratic expression: $$x^2 + 17x - 60$$ .

The factored form is $$ (x + 20)(x - 3) $$ .

What does the discriminant of a quadratic equation tell you?

The discriminant $$D = b^2 - 4ac$$ indicates the nature of the roots: if D > 0, two real roots; D = 0, one real root; D

What is the vertex form of a quadratic function?

The vertex form is $$y = a(x-h)^2 + k$$ where (h, k) is the vertex of the parabola.

How do you determine if a quadratic function opens upwards or downwards?

If the coefficient a in $$y = ax^2 + bx + c$$ is positive, it opens upwards; if negative, it opens downwards.

What is the formula for the axis of symmetry of a parabola?

The axis of symmetry is given by $$x = -\frac{b}{2a}$$ .

What is the significance of the leading coefficient in a quadratic function?

The leading coefficient determines the direction of the parabola: positive for upwards, negative for downwards.

How do you complete the square for a quadratic expression?

To complete the square, rewrite $$ax^2 + bx$$ as $$a\left(x^2 + \frac{b}{a}x\right)$$ and add and subtract the square of half the coefficient of x.

What is the relationship between the roots and the coefficients of a quadratic equation?

The sum of the roots is $$-\frac{b}{a}$$ and the product of the roots is $$\frac{c}{a}$$ .

What is a quadratic function?

A quadratic function is a polynomial function of degree 2, typically written in the form $$y = ax^2 + bx + c$$ .

Algebra 2 Exam Review Flashcards

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15 questions

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1.

FLASHCARD QUESTION

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2.

FLASHCARD QUESTION

Front

Solve the equation: 2(x - 8)² + 40 = 16.

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3.

FLASHCARD QUESTION

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4.

FLASHCARD QUESTION

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5.

FLASHCARD QUESTION

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It has a maximum because the coefficient of the leading term is negative.

6.

FLASHCARD QUESTION

Front

What is the standard form of a quadratic function?

Back

7.

FLASHCARD QUESTION

Front

How do you find the vertex of a quadratic function in standard form?

Back

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