Explain the steps to graphing a linear equation in the form

y = mx + b
Step 1: Identify the ________ and _________.

Step 2: Plot the _____________.

Step 3: Apply the _________. The _____ is the vertical change and the _______ is the horizontal change.

1 answer

Certainly! Here are the steps to graphing a linear equation in the form \( y = mx + b \):

Step 1: Identify the slope (m) and y-intercept (b).

  • The slope (m) indicates the steepness of the line and the direction (positive or negative).
  • The y-intercept (b) is the point where the line crosses the y-axis.

Step 2: Plot the y-intercept.

  • Start by plotting the point (0, b) on the graph, where b is the y-intercept.

Step 3: Apply the slope.

  • The slope is represented as a fraction \( \frac{rise}{run} \). The rise is the vertical change (how much to move up or down) and the run is the horizontal change (how much to move right or left).
  • From the y-intercept point, use the rise and run to find another point on the line. For example, if the slope is \( \frac{2}{3} \), you would go up 2 units (rise) and then to the right 3 units (run) and plot that point.

Step 4: Draw the line.

  • Use a ruler to draw a straight line through the points you've plotted, extending it in both directions.

This method provides a clear and systematic way to graph any linear equation in the slope-intercept form \( y = mx + b \).