Test - 12 Weeks

Test - 12 Weeks

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the rate of change in a linear function?

Back

The rate of change in a linear function represents how much the output value (y) changes for a unit change in the input value (x). It is often represented by the slope of the line.

2.

FLASHCARD QUESTION

Front

How do you calculate the constant of proportionality?

Back

The constant of proportionality can be calculated by dividing the output value by the input value in a proportional relationship. It represents the ratio between the two quantities.

3.

FLASHCARD QUESTION

Front

What is the formula for slope in a linear equation?

Back

The slope (m) of a linear equation is calculated as m = (change in y) / (change in x). It indicates the steepness and direction of the line.

4.

FLASHCARD QUESTION

Front

Write the equation for a linear function given a slope and a y-intercept.

Back

The equation of a linear function can be written in the form y = mx + b, where m is the slope and b is the y-intercept.

5.

FLASHCARD QUESTION

Front

What does it mean for y to vary directly as x?

Back

When y varies directly as x, it means that y is proportional to x, and can be expressed as y = kx, where k is the constant of proportionality.

6.

FLASHCARD QUESTION

Front

How do you find the total cost of renting a boat given a deposit and hourly rate?

Back

The total cost can be calculated using the equation y = mx + b, where m is the hourly rate, x is the number of hours, and b is the deposit fee.

7.

FLASHCARD QUESTION

Front

What is the significance of a negative slope in a linear function?

Back

A negative slope indicates that as the input value (x) increases, the output value (y) decreases, showing an inverse relationship between the two variables.

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