Posted by **mikil** on Monday, August 12, 2013 at 11:23pm.

Reflect the point (-3,1) over the y axis. What is the new coordinate. Give explanation.

- Math -
**Jai**, Monday, August 12, 2013 at 11:35pm
First, try plotting (-3,1) on a graphing paper. You'll see it's in the 2nd Quadrant. When you reflect it on the y-axis, the new point will be on the third quadrant (where both x & y coordinates are negative). Therefore the new point is at (-3,-1).

Hope this helps~ :)

- Math -
**Steve**, Tuesday, August 13, 2013 at 12:05am
excuse me? reflection in the y-axis changes only the x-coordinate. Using the y-axis as an "axle" rotate the point 1/2 turn, to wind up at (3,1)

(x,y) -> (-x,y)

- Math -
**Jai**, Tuesday, August 13, 2013 at 12:08am
OMG I'm sorry I'm thinking about x-axis!

Sorry about that.

- Math -
**Steve**, Tuesday, August 13, 2013 at 12:10am
It's easy to mis-read problems. been there, done that. One reason why it's good that we check each other's work.

## Answer this Question

## Related Questions

- Math - In a coordinate plane, Brittany labeled the coordinates for point m as (-...
- math - When a figure is drawn in quadrant 2, and you reflect it over the x axis...
- Math - If I want to reflect f(x) = -3x + 5 over the x-axis, would the new ...
- geometry help!! answer all questions!! please - 1) Write the translation that ...
- Geometry - Write the translation that maps P(-4, 2) onto the point P ' (-1, -1...
- Geometry - 1) find the coordinate of the image of point (1,2) translated left 2 ...
- math - Point A(8,-10) is reflected over the y-axis. Write the coordinate of A'. ...
- math - When a figure is drawn in quadrant 2, and you reflect it over the x axis...
- math - Explain how to reflect a polygon over the X axis and the Y axis.
- Math - 19. Point A(4, 2) is translated according to the rule (x, y) (x + 1, y – ...

More Related Questions