Question

How do you plot the ordered pairs on the rectangular coordinate system (5.1, 3.2) and (-2.5, 4.9)?

Answer 1

See a solution process below:

Explanation:

To plot points on the coordinate grid:

• For the `x` value go to the right if the number is positive and to the left if the number is negative.

• Then, for the `y` value go up if the number is positive and down if the number is negative.

First Plot: `(5.1, 3.2)`

Because the `x` value is positive go to the right `5.1` from the origin and then go up `3.2` because the `y` value is also positive:

graph{((x - 5.1)^2 + (y - 3.2)^2 - 0.025) = 0 [-8, 8, -1, 7]}

Next Plot: `(-2.5, 4.9)`

Because the `x` value is negative go to the left `2.5` from the origin and then go up `4.9` because the `y` value is positive:

graph{((x + 2.5)^2 + (y - 4.9)^2 - 0.025)((x - 5.1)^2 + (y - 3.2)^2 - 0.025) = 0 [-8, 8, -1, 7]}