STAAR Released Questions: Slope & Functions

STAAR Released Questions: Slope & Functions

Assessment

Flashcard

Mathematics

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the slope of a linear function?

Back

The slope of a linear function represents the rate of change of the function. It is calculated as the change in the y-value divided by the change in the x-value (rise/run).

2.

FLASHCARD QUESTION

Front

Define a linear function.

Back

A linear function is a function that graphs to a straight line. It can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

3.

FLASHCARD QUESTION

Front

What does the y-intercept represent in a linear function?

Back

The y-intercept is the point where the line crosses the y-axis. It represents the value of y when x is 0.

4.

FLASHCARD QUESTION

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if it can be expressed as y = kx, where k is a constant. This means that as x increases, y increases at a constant rate.

5.

FLASHCARD QUESTION

Front

What is the equation of a line with a negative slope?

Back

An equation of a line with a negative slope can be written as y = mx + b, where m is negative. This indicates that as x increases, y decreases.

6.

FLASHCARD QUESTION

Front

Explain the concept of a function.

Back

A function is a relation that assigns exactly one output (y) for each input (x). In other words, for every x-value, there is one corresponding y-value.

7.

FLASHCARD QUESTION

Front

What is a constant rate of change?

Back

A constant rate of change means that the change in y for each unit change in x is the same throughout the function. This is characteristic of linear functions.

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