Unit 2 Show Me What You Remember

Front

What is the range of a set of numbers?

Back

The range is the difference between the highest and lowest values in a set. It can also refer to the set of all possible output values of a function.

Front

How do you find the missing output value in a function?

Back

To find the missing output value, you can substitute the input value into the function's equation and solve for the output.

Front

What does the equation y = -2x + 1 represent?

Back

This is a linear equation in slope-intercept form, where -2 is the slope and 1 is the y-intercept.

Front

What is a mapping diagram?

Back

A mapping diagram visually represents the relationship between input and output values, showing how each input is paired with an output.

Front

What is a function?

Back

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

Front

What is the formula for slope?

Back

Slope (m) is calculated as the change in y values (rise) over the change in x values (run): m = (y2 - y1) / (x2 - x1).

Front

What does 'rise over run' mean?

Back

'Rise over run' refers to the slope of a line, indicating how much the line rises or falls for each unit it runs horizontally.

Front

How do you determine if a relation is a function using a set of ordered pairs?

Back

A relation is a function if no two ordered pairs have the same first element (input) with different second elements (outputs).

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the output value when the input is zero.

Front

What is the difference between a function and a relation?

Back

A relation is any set of ordered pairs, while a function is a specific type of relation where each input is associated with exactly one output.