Question

Write the equation, in slope-intercept form, of the line that has a slope of 2 and passes through the point (3, 1).

Answer 1

General equation of the line;
$y=mx+c$
m=2
$y=2x+c$
Replacing for 
y=1, x= 3
$1=2*3+c$
c=-5
y=2x-5