Coordinate Plane Problems Practice
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Question
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A coordinate plane plots temperature in Celsius for different days. The x-axis labeled day, and the y-axis labeled temperature degree Celcius, both range from negative 5 to 5 in increments of 1. Six unlabeled points are plotted. Quadrant 1 is labeled with left parenthesis positive sign comma positive sign right parenthesis. Quadrant 2 is labeled with left parenthesis negative sign comma positive sign right parenthesis. Quadrant 3 is labeled with left parenthesis negative sign comma negative sign right parenthesis. Quadrant 4 is labeled with left parenthesis positive sign comma negative sign right parenthesis. Points are plotted at left parenthesis 2 comma 2 right parenthesis; left parenthesis negative 4 comma 4 right parenthesis, left parenthesis negative 3 comma 0 right parenthesis; left parenthesis negative 2 comma negative 2 right parenthesis; left parenthesis zero comma zero right parenthesis; left parenthesis 4 comma negative 1 right parenthesis.
Alex is tracking temperatures. Today the temperature was 0° Celsius, which is represented by the point (0, 0) . If the temperature yesterday was right in between today’s temperature and the temperature two days ago, what was the temperature yesterday?
(1 point)
Yesterday’s temperature was
° Celsius.
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To find the temperature yesterday, we need to find the point that is right in between the point (0, 0) and the temperature two days ago.
The temperature two days ago is represented by the point (-2, -2).
To find the point right in between these two points, we can take the average of their x-coordinates and the average of their y-coordinates.
The x-coordinate average is (0 + (-2))/2 = -1
The y-coordinate average is (0 + (-2))/2 = -1
Therefore, the temperature yesterday was -1° Celsius.