Answer :
We know that
• The slope is 1/2.
,• The x-intercept is a (4,0).
To find the equation of this straight line, we have to use the point-slope formula
[tex]y-y_1=m(x-x_1)[/tex]Now, we replace all given values
[tex]\begin{gathered} y-0=\frac{1}{2}(x-4) \\ y=\frac{1}{2}x-2 \end{gathered}[/tex]Therefore, the slope-intercept form is
[tex]y=\frac{1}{2}x-2[/tex]