(coordinate plane) point a coordinates are (1,3). if reflected across the x-axis, what is the new point's coordinates?

keep the answer as simple as possible. a grid shown in the problem will be respected.

(1,-3)

Step-by-step explanation:

The reason why it would be (1,-3) is because (1,3) is in the first quadrant which is (+,+) and when it is reflected across the x axis, it is then placed into the fourth quadrant which is (+,-). So you need to make the 3 negative and then it will be reflecting across the x axis

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.