Plot Straight Line Graphs

This video tutorial teaches how to draw and plot straight line graphs using linear equations. It covers creating a table of values, substituting x values, and plotting coordinates on a graph. The video emphasizes the importance of understanding coordinates, axes, and quadrants. It provides practice exercises and solutions for plotting equations like y = 2x - 3 and y = 7 - 3x. The tutorial concludes with a preview of handling fractions in future lessons.

What prior knowledge is recommended before learning about straight line graphs?

• Familiarity with trigonometry

• Understanding of calculus

• Knowledge of coordinates, axes, and quadrants

• Experience with algebraic expressions

What is the first step in plotting the graph of the equation y = 2x - 3?

• Draw the graph directly

• Calculate the slope

• Create a table of values

• Find the y-intercept

How many coordinates are generally needed to accurately plot a straight line?

• Three

• Four

• Two

• One

What should you do after plotting the points on the graph?

• Find the midpoint of the line

• Erase the points

• Join them with a straight line

• Calculate the area under the line

What is the equation used in the practice exercise for plotting a straight line?

• y = 7 - 3x

• y = 2x - 3

• y = 4x - 1

• y = x + 5