8th Grade Term 2 Review

Front

What is the y-intercept (b) of a linear equation?

Back

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

Front

Identify an outlier in a data set.

Back

An outlier is a data point that differs significantly from other observations. For example, in the set (1, 2, 3, 15), (15) is an outlier.

Front

How do you find the y-intercept from a linear equation in standard form?

Back

To find the y-intercept from an equation like Ax + By = C, set x = 0 and solve for y.

Front

What is 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.

Front

What does it mean for a function to be increasing?

Back

A function is increasing if, as x increases, y also increases.

Front

What is the standard form of a linear equation?

Back

The standard form of a linear equation is Ax + By = C, where A, B, and C are integers.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How can you identify a linear function from a table of values?

Back

A linear function will have a constant rate of change between the x-values and y-values.

Front

What is the difference between a function and a relation?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What does it mean for a function to be constant?

Back

A constant function is one where the output value does not change regardless of the input value.