Steve plotted 3 points from the equation y = 3x on this coordinate grid. He drew a straight line through the points. Which ordered pair would also be on this line? A. (+5, +15) B. (+4, +7) C. (+5, +3) D. (+12, +4)
For this case we have the following linear function: y = 3x We note that the slope of the line is: m = 3 Therefore, we must find which of the ordered pairs satisfies the equation: For (5, 15) we have: x = 5 y = 15 Substituting values: 15 = 3 (5) Rewriting 15 = 15 The equation is satisfied. Answer: An ordered pair that would also be on this line is: A. (+5, +15)
