GCSE Maths - Common Straight Line Equations You NEED TO KNOW #64

The video tutorial explains how to recognize and write equations for different types of lines on a graph. It covers vertical lines, which have equations in the form X = constant, horizontal lines with equations Y = constant, and diagonal lines where X and Y coordinates are equal, resulting in equations like Y = X. The tutorial also discusses diagonal lines with negative slopes, where Y is the negative of X.

What are the names of the axes on a graph?

How do you determine the equation of a vertical line?

What is the equation of a horizontal line that crosses the Y axis at 5?

Describe the equation for a diagonal line where the X and Y coordinates are always equal.

What happens to the equation of a diagonal line if it goes in the opposite direction?