Question

Ellen thinks that if a line has no slope, then it never touches they y-axis. Which line proves that her statement is incorrect?

Answer 1

The statement that a line without a slope never touches the y-axis is incorrect. To prove this, a horizontal line (a line with a slope of zero) would touch the y-axis. For example, the equation of a horizontal line, y = 4, would touch the y-axis at y = 4.