Press <ENTER>.

The calculator places an arrow at the x-value we chose and now asks for a point on the graph whose x-coordinate is above (or to the right of) the x-intercept's x-coordinate.  We can do this by moving the cursor with the arrow keys or by typing in an x-value.  We'll do it the second way.  Note that the graph crosses the x-axis near the point (3, 0) so we'll choose 4.  Simply type "4."

Press <ENTER>.

Our answer is x = 3.