what two steps do u follow to tell if a table is a direct variation/proportion?
To determine if a table represents a direct variation or proportion, you can follow these two steps:
Step 1: Check for constant ratios.
- Calculate the ratio between the y-values (dependent variable) and the corresponding x-values (independent variable) for each row in the table.
- If the ratios are constant for all rows, then the table represents a direct variation or proportion.
Step 2: Verify through graph analysis.
- Plot the values from the table on a coordinate plane as points.
- If the points fall on a straight line that passes through the origin (0,0), then the table represents a direct variation or proportion.
By following these steps, you can determine if a table represents a direct variation or proportion based on the relationship between the x and y values.