8th Grade - Functions Review

Front

What is a linear function?

Back

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Front

What does the slope of a linear function represent?

Back

The slope of a linear function represents the rate of change of the function. It indicates how much the dependent variable (y) changes for a unit change in the independent variable (x).

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept of a function?

Back

The y-intercept is the point where the graph of a function intersects the y-axis. It represents the value of the function when the independent variable (x) is zero.

Front

How do you find the slope from a graph?

Back

To find the slope from a graph, select two points on the line, calculate the change in y (rise) and the change in x (run), and use the formula: slope = rise/run.

Tags

CCSS.8.EE.B.5

Front

What does a positive slope indicate about a linear function?

Back

A positive slope indicates that as the independent variable (x) increases, the dependent variable (y) also increases, showing a direct relationship.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate about a linear function?

Back

A negative slope indicates that as the independent variable (x) increases, the dependent variable (y) decreases, showing an inverse relationship.

Tags

CCSS.8.EE.B.5

Front

What is the formula for calculating the slope between two points (x1, y1) and (x2, y2)?

Back

The formula for calculating the slope is: slope = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

Back

Tags

CCSS.HSF-IF.C.7A

Front

What does the slope of a weight loss graph represent?

Back

The slope of a weight loss graph represents the rate of weight loss per week, indicating how many pounds are lost each week.

Tags

CCSS.8.EE.B.5

Front

How do you interpret the y-intercept in a real-world context?

Back

The y-intercept in a real-world context often represents a starting value or initial condition before any changes occur.

Tags

CCSS.HSF.LE.B.5