This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
3.1 Step 1: Identify the variables presented in the table and graph. The table and graph show "Minutes" and "Total Cost (R)". Step 2: Determine which variable changes in response to the other. The total cost depends on the number of minutes used. The dependent variable for this data is the Total Cost (R). 3.2 Step 1: Recall the definition of a direct proportion relationship. A direct proportion relationship is represented by a straight line that passes through the origin (0,0). Step 2: Examine the graph for Option A and Option B. Option A starts at a cost of R180 for 0 minutes, so it does not pass through the origin. Option B starts at a cost of R0 for 0 minutes and shows a linear increase. Option B represents a direct proportion relationship. Reason: Option B represents a direct proportion because its graph is a straight line that passes through the origin (0,0), meaning the cost is R0 when 0 minutes are used, and the cost increases proportionally with the minutes used. Last free one today — make it count tomorrow, or type /upgrade for unlimited.