Question

What’s the answer to this ?

Answer 1

• see below for a plot
• 9

Explanation:

If you properly plot the points, you can count the grid squares to see how long the line is between the points. (The line is just to show the measurement you're making. It is not required by the problem.)

As you know, an (x, y) coordinate pair refers to the point that is x units to the right of the y-axis and y units above the x-axis. A negative x value sends you in the left direction, and a negative y-value is below the x-axis, rather than above. On your grid, you can count the squares to locate the points.

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There are 9 units between -3 and +6. That's the distance between the endpoints on the horizontal line.