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# Transformation of Functions watch

1. Take these functions:

y=-f(x) with the coordinates (-1,-1)
y=f(-x) with the coordinates (-1,-1)

-f(x) is a reflection in the x direction so would I multiply the y coordinate by -1 to get my new point as (-1,1)?

f(-x) is a reflection in the y direction so would I multiply the x coordinate by -1 to get my new point as (1,-1)?

Thanks
2. (Original post by Y11_Maths)
Take these functions:

y=-f(x) with the coordinates (-1,-1)
y=f(-x) with the coordinates (-1,-1)

-f(x) is a reflection in the x direction so would I multiply the y coordinate by -1 to get my new point as (-1,1)?

f(-x) is a reflection in the y direction so would I multiply the x coordinate by -1 to get my new point as (1,-1)?

Thanks
Yes

This is because -f(x) reflects the graph in the x-axis, and f(-x) reflects the graph in the y-axis.
3. (Original post by Mehru1214)
Yes
Thanks

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