Question

Ken's predicted temperature for April is 7 degrees Celsius. His prediction for May is 2 degrees Celsius higher than April. He used the number line to solve the problem, starting at 0, moving right to 7, and then moving 2 units to the left. Explain Ken's error.

a. Ken mistakenly moved in the wrong direction.
b. Ken added instead of subtracting.
c. Ken's starting point on the number line was incorrect.
d. Ken forgot to account for the Celsius conversion.

Answer 1

Ken's error was that he mistakenly moved in the wrong direction on the number line.

Step-by-step explanation:

Ken's error in solving the problem was that he mistakenly moved in the wrong direction on the number line. The problem stated that Ken's prediction for May was 2 degrees Celsius higher than April. However, Ken moved 2 units to the left instead of to the right, which resulted in the incorrect prediction.

To solve the problem correctly, Ken should have started at 7 on the number line and then moved 2 units to the right. This would have given him the correct prediction for May's temperature.

Therefore, the correct answer is a. Ken mistakenly moved in the wrong direction.