C3.Mod 2 Topic 1 Mult Choice Practice Test

Front

What does CCSS.8.EE.B.5 focus on in terms of relationships between quantities?

Back

CCSS.8.EE.B.5 focuses on analyzing and solving linear equations in one variable, particularly understanding the relationship between quantities and how to represent them graphically.

Front

What is the significance of the y-intercept in determining if a relationship is proportional?

Back

If the y-intercept is not zero, the relationship is non-proportional. A proportional relationship passes through the origin (0,0).

Front

How do you calculate the slope of a line given two points?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of the two points.

Front

What is a unit rate, and how is it determined in a proportional relationship?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity. In a proportional relationship, it is found by dividing the two quantities.

Front

How can you express a proportional relationship using an equation?

Back

A proportional relationship can be expressed in the form y = kx, where k is the constant of proportionality.

Front

What does a negative slope indicate about a linear relationship?

Back

A negative slope indicates that as one quantity increases, the other quantity decreases, showing an inverse relationship.

Front

In the context of the provided questions, what does the equation y = (2/5)x represent?

Back

The equation y = (2/5)x represents a proportional relationship where 2 out of every 5 balloons are red.

Front

What is the difference between proportional and non-proportional relationships?

Back

Proportional relationships have a constant ratio and pass through the origin, while non-proportional relationships do not maintain a constant ratio and may have a non-zero y-intercept.

Front

How can you determine if a relationship is linear?

Back

A relationship is linear if it can be represented by a straight line on a graph, indicating a constant rate of change.

Front

What is the importance of understanding slope in real-world applications?

Back

Understanding slope is crucial for interpreting rates of change in various contexts, such as speed, cost, and other relationships.