Question 955082
Choose two x values.
Generate y values.
Plot x,y pairs.
Draw the line through both.
{{{x=0}}}
{{{y=(1/2)(0)+1=1}}}
(0,1)
.
.
{{{x=4}}}
{{{y=(1/2)(4)+1=2+1=3}}}
(4,3)
.
.

{{{drawing(300,300,-5,5,-5,5,grid(1),circle(4,3,0.2),circle(0,1,0.2),graph(300,300,-5,5,-5,5,(1/2)x+1))}}}