Draw the graph of y = 2x - 1, y = 2x + 1 and y = 2x + 5 on the same axes. Class 9

Draw the graph of y = 2x - 1, y = 2x + 1 and y = 2x + 5 on the same axes. Class 9

Question 1.

Draw the graph of y = 2x - 1, y = 2x + 1 and y = 2x + 5 on the same axes. Class 9

Does this help you to conclude anything about the linear equation y = ax + b when a is fixed but b varies?

Answer:

When a is fixed but b varies in y = ax + b, the slope of the line remains the same but the y-intercept changes.