Question 934450
{{{f(x)=sqrt(x-4)+1}}}

make a table:

{{{x}}}|{{{f(x)}}}

{{{4}}}|{{{1}}}
{{{5}}}|{{{2}}}
{{{8}}}|{{{3}}}
{{{13}}}|{{{4}}}
{{{20}}}|{{{5}}}

plot points and draw a line through:


{{{drawing( 600, 600, -5, 35, -10, 10,
circle(4,1,.14),locate(4,1,p(4,1)),
circle(5,2,.14),locate(5,2,p(5,2)),
circle(8,3,.14),locate(8,3,p(8,3)),
circle(13,4,.14),locate(13,4,p(13,4)),
circle(20,5,.14),locate(20,5,p(20,5)), graph( 600, 600, -5, 35, -10, 10, sqrt(x-4)+1)) }}}


domain:

{ {{{x}}} element {{{R}}} : {{{x>=4}}} }

range:

{ {{{f(x)}}} element {{{R}}} : {{{f(x)>=1}}} }