If an object starts at the origin (of a graph) moving to the right with a kinetic energy of 45.5 J, how much kinetic energy does it have at x = 3.0 m?

Something is missing here. Is this object in a force field as it moves?

The only other bit of information is that the force Fx (represented by the y axis) is presented as a function of X

To determine the kinetic energy at a specific position, we need to consider the equation for the kinetic energy of an object: KE = (1/2) * m * v^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object.

In this case, since we are given that the object is moving to the right, we know that its velocity will be positive. However, we don't have any information about the mass of the object or its velocity at the given position. So, to calculate the kinetic energy at x = 3.0 m, we need to know either the mass or the velocity of the object at that point.

If we have information on either the mass or the velocity, we can use the equation to calculate the kinetic energy. If not, we can't determine the specific value.