Hello, John!

I'm trying to create a cubic function that has only one x-intercept of -5

and a y-intercept of around 10.

The y-intercept doesn't have to be exact.

Since is a zero of the cubic, is a factor.

Then the cubic is the product of and a quadratic.

. .

The -intercept will be 10 if

. .

Since is the-intercept, the quadratic has no real roots.only

. . That is: .

We have: .

Let

And we have: .

. . . . . one of a brizillion possible cubics.