Question 1066978
<pre>
"x-intercept 5" means the point (5,0). 

Use the slope formula:

{{{m}}}{{{""=""}}}{{{(y[2]-y[1])/(x[2]-x[1])}}}

where (x<sub>1</sub>,y<sub>1</sub>) = (5,0)

and where (x<sub>2</sub>,y<sub>2</sub>) = (9,6)

{{{m}}}{{{""=""}}}{{{(6-0)/(9-5)}}}

{{{m}}}{{{""=""}}}{{{(6)/(4)}}}

{{{m}}}{{{""=""}}}{{{3/2}}}

Now use the point-slope formula:

y - y<sub>1</sub> = m(x - x<sub>1</sub>)

where (x<sub>1</sub>,y<sub>1</sub>) = (5,0)

y - 0 = {{{3/2}}}(x - 5)

y = {{{3/2}}}(x - 5)

{{{y=expr(3/2)x-15/2}}}

Edwin</pre>