SOLUTION: {{{y=(-0.095*x^3)+(2.5*x)+5}}} How can I modify this function to widen the graph horizontally by 2 units? I was given a graph and I am attempting to construct an approximate formu

SOLUTION: {{{y=(-0.095x^3)+(2.5x)+5}}} How can I modify this function to widen the graph horizontally by 2 units? I was given a graph and I am attempting to construct an approximate formu

Question 1193116: How can I modify this function to widen the graph horizontally by 2 units? I was given a graph and I am attempting to construct an approximate formula for it. I started out with y=x^3, then added 5 to move it up 5 units, then tried y=-1*x^3+5 to flip it around the y-axis, then I added in an x y=-x^3+x+5, then started adding some constants y=(-0.095*x^3)+(2.5*x)+5 but I need to make it a bit wider and all I seem to get are vertical transformations. Is there a way to post the original graph? I've been using Desmos.com to experiment with different changes. Thanks so much! -Scott
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

It's not at all clear what you are given and what you are supposed to do....

It's apparently easy to post pictures online; then you can include the link to the picture in your message to us. I have no experience doing this -- but you can learn how by googling something like "posting pictures online".

Re-post, including a link to picture of the graph you are given, and making it more clear what you have been trying.

----------------------------------------------------------------------

The student posted a picture:

https://photos.app.goo.gl/FcQe8YG4fRAXbeRt9

To the student:

Apparently you were given -- or reached the point where you had -- the function .

The problem with your post was that you said you wanted to know how to "widen the graph horizontally by 2 units". But there is no transformation that widens a graph by a given number of units.

What you meant to say (according to the solution you posted) was that you wanted to widen the graph BY A FACTOR OF 2.

And as you found, the way to do that is replace "x" with "(1/2)x".

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