8th Math DCP 2 Review

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis.

Front

How do you determine if a table represents a function?

Back

A table represents a function if each input (x-value) corresponds to exactly one output (y-value).

Front

What is the equation for a linear function?

Back

The equation for a linear function is typically in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What does it mean for a mapping to be a function?

Back

A mapping is a function if every element in the domain is paired with exactly one element in the range.

Front

How do you find the point of intersection of two linear equations?

Back

To find the point of intersection, solve the equations simultaneously to find the values of x and y that satisfy both equations.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise (change in y) over the run (change in x).

Front

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

Back

The formula for slope (m) is m = (y2 - y1) / (x2 - x1).

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

How do you write an equation from a word problem?

Back

Identify the variables, determine the relationship between them, and express that relationship in equation form.