SOLUTION
Set the function equal to zero to solve for x.
{
0
=
1
2
x
−
3
3
=
1
2
x
6
=
x
x
=
6
⎩
⎪
⎪
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎪
⎪
⎧
0=
2
1
x−3
3=
2
1
x
6=x
x=6
The graph crosses the x-axis at the point (6, 0).
Answer is The constant x-value is 7, so the equation is x = 7.