What is the difference between a rational and an irrational number?

A rational number can be expressed as a fraction $$\frac{p}{q}$$ , while an irrational number cannot.

What is the slope-intercept form of a linear equation?

$$y = mx + b$$ where $$m$$ is the slope and $$b$$ is the y-intercept.

A relation that assigns exactly one output for each input.

What is the absolute value of a number?

The distance of that number from zero on the number line, denoted as $$|x|$$ .

What is a system of equations?

A set of two or more equations with the same variables.

Flashcard

•

Mathematics

•

11th Grade

•

Practice Problem

•

Hard

•

CCSS

HSA-REI.B.4B, 8.EE.A.2, HSF-IF.C.7A

Standards-aligned

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15 questions

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FLASHCARD QUESTION

Front

What is the factored form of $x^2 + 16x + 15$ ?

Back

(x + 1)(x + 15)

FLASHCARD QUESTION

Front

Solve $x^2 = 100$ .

Back

x = -10, 10

Tags

CCSS.8.EE.A.2

FLASHCARD QUESTION

Front

Simplify $\sqrt{-4}$ .

Back

FLASHCARD QUESTION

Front

Simplify $\sqrt{24}$ .

Back

2\sqrt{6}

FLASHCARD QUESTION

Front

What is the y-intercept of the line graphed below?

Back

FLASHCARD QUESTION

Front

What is the quadratic formula?

Back

$x = \frac{{-b \pm \sqrt{{b^2 - 4ac}}}}{{2a}}$

Tags

CCSS.HSA-REI.B.4B

FLASHCARD QUESTION

Front

Define a polynomial function.

Back

A function that can be expressed in the form $f(x) = a_nx^n + a_{n-1}x^{n-1} + ... + a_1x + a_0$ where $a_n, a_{n-1}, ..., a_0$ are constants.

FLASHCARD QUESTION

Front

What is the vertex form of a quadratic function?

Back

$f(x) = a(x - h)^2 + k$ where (h, k) is the vertex.

FLASHCARD QUESTION

Front

What is the discriminant of a quadratic equation?

Back

The discriminant is $D = b^2 - 4ac$ and determines the nature of the roots.

Tags

CCSS.HSA-REI.B.4B

10.

FLASHCARD QUESTION

Front

How do you find the x-intercepts of a quadratic function?

Back

Set $f(x) = 0$ and solve for $x$ .

Tags

CCSS.HSF-IF.C.7A

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