Question

If you have $20, then you spend $10, which direction would the point representing the money you have remaining move on a horizontal number line?

a) Left

b) Right

c) Up

d) Down

Answer 1

Upon spending $10 out of $20, the representative point on a horizontal number line would move to the left side of the coordinate system, indicating a decrease in the amount of money remaining.

Step-by-step explanation:

If you begin with $20 and then spend $10, the point representing the money you have remaining would move on a horizontal number line in the direction that represents a decrease in value. On a standard number line where increases in value move to the right, a decrease would move to the left. Therefore, the correct answer to the question 'which direction would the point representing the money you have remaining move on a horizontal number line' is d. Horizontally to the left side of the coordinate system.

When you start with $20 and spend $10, you are subtracting $10 from $20. This means you are moving to the left on the number line, indicating that you have less money.

So, the answer is a) Left.