Locate 8 on the right side of the numberline, and the solution is all values to the right of the 8 and INCLUDING the 8. You can indicate this either by drawing a SOLID circle on 8 and shade to the right of 8 with an arrow on the end of the line to indicate that it continues forever. Also, instead of the solid circle, in higher math, you would place a BRACKET [ on the 8, and opening to the right, and shade to the right.
