CJ and Marlene were asked to plot the points (-61/2,3) on a coordinate grid, their work is shown Who is correct? What mistake in the other make

Answer 1

To determine who is correct between CJ and Marlene when plotting the point \((-61/2, 3)\), we first need to understand the coordinates involved:

1. The x-coordinate is \(-61/2\), which simplifies to \(-30.5\). This means the point is located 30.5 units to the left of the origin on the x-axis.
2. The y-coordinate is \(3\), meaning the point is located 3 units above the origin on the y-axis.

When plotting this point:

• You start from the origin (0, 0).
• Move to the left along the x-axis to \(-30.5\).
• Then move up to the coordinate \(3\).

Corrections:

• Check where CJ plotted the point. He should have plotted at \((-30.5, 3)\). If he plotted at, for example, \((30.5, 3)\), he would be incorrect as this would place the point on the right side of the y-axis instead of the left.

• Now check Marlene's plotting. If she also made a mistake by possibly plotting the point somewhere else (like \((-30.5, -3)\)), she would also be incorrect as that would put the point below the x-axis instead of above.

Conclusion:

• Correctness depends on whether CJ and Marlene accurately placed the point at \((-30.5, 3)\).
• If one of them plotted the point in the correct position, they are correct, and the other made a mistake either in the sign of the x-coordinates or y-coordinates, or possibly in the values themselves.

For a definitive answer, we would need to see the specific plots created by CJ and Marlene.