A 1 Ch 3 Review

Front

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

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What does it mean if the slope of a line is zero?

Back

The line is horizontal, indicating no change in y as x changes.

Front

What does it mean if the slope of a line is undefined?

Back

The line is vertical, indicating no change in x as y changes.

Front

What is the objective when solving an equation?

Back

To isolate the variable.

Front

How can you determine if a function is linear?

Back

A function is linear if it can be represented by a straight line on a graph.

Front

What is the slope of the line that passes through the points (1, -19) and (-2, -7)?

Back

-4

Front

What is the slope of the line that passes through the points (3, 2) and (3, 5)?

Back

Undefined

Front

What is the slope of the line that passes through the points (0, 0) and (5, 0)?

Back

Zero

Front

What is a linear equation?

Back

An equation that can be written in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the y-intercept of the line represented by the equation y = 2x + 3?

Back

3