Compare Quadratic Functions

Compare Quadratic Functions

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF-IF.C.7A, 8.F.A.2, 8.F.A.1

+5

Standards-aligned

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a quadratic function?

Back

A quadratic function is a polynomial function of degree 2, typically in the form f(x) = ax² + bx + c, where a, b, and c are constants and a ≠ 0.

2.

FLASHCARD QUESTION

Front

What does the y-intercept of a function represent?

Back

The y-intercept of a function is the point where the graph of the function crosses the y-axis, which occurs when x = 0.

3.

FLASHCARD QUESTION

Front

How can you determine the y-intercept from a quadratic equation?

Back

You can determine the y-intercept by substituting x = 0 into the quadratic equation, resulting in f(0) = c.

Tags

CCSS.HSF-IF.C.7A

4.

FLASHCARD QUESTION

Front

What does it mean for a function to 'open up'?

Back

A quadratic function opens up if the coefficient 'a' in the standard form f(x) = ax² + bx + c is positive (a > 0).

Tags

CCSS.HSF-IF.C.7A

5.

FLASHCARD QUESTION

Front

What is the vertex of a quadratic function?

Back

The vertex of a quadratic function is the highest or lowest point on the graph, depending on whether it opens up or down.

6.

FLASHCARD QUESTION

Front

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

Back

The vertex can be found using the formula x = -b/(2a) to find the x-coordinate, and then substituting this value back into the function to find the y-coordinate.

7.

FLASHCARD QUESTION

Front

What is the significance of the outputs of a function at specific x-values?

Back

The outputs of a function at specific x-values indicate the corresponding y-values on the graph, showing the relationship between x and y.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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