Graphing Rational Numbers on a Coordinate Plane

This video tutorial teaches how to graph rational numbers on a coordinate plane. It covers common mistakes in plotting points, such as incorrect order of plotting and misunderstanding fractional values. The tutorial demonstrates plotting positive, negative, mixed, and decimal numbers, emphasizing the importance of understanding the scale of the coordinate plane. It also discusses estimating points when the scale changes, and concludes with a summary of the key concepts learned.

What is the correct order of plotting a point on a coordinate plane?

• Up and then across

• Across and then up

• Down and then across

• Across and then down

Which quadrant would the point (1/2, 2) be located in?

• Quadrant II

• Quadrant I

• Quadrant IV

• Quadrant III

How would you plot the point (-3/4, -1) on the coordinate plane?

• Go right 3/4 and down 1

• Go right 3/4 and up 1

• Go left 3/4 and down 1

• Go left 3/4 and up 1

When plotting decimal numbers, how would you plot the point (1.25, -2)?

• Go right 1 and a quarter, then down 2

• Go left 1 and a quarter, then up 2

• Go right 1 and a quarter, then up 2

• Go left 1 and a quarter, then down 2

What happens to the points when the scale of the coordinate plane changes?

• They remain on the lines

• They move to the corners

• They disappear

• They may appear in the center of squares