Any
 line that has a slope of 5 is parallel to the above given line. Using 
the standard slope-intercept form of the straight line equation, the 
equation is in the form of 
y = 5x + b 
where b = any constant. 
<<  work out the gradient of the line: y+2x =6 >> 
Rewriting the above in the standard slope-intercept form of the straight line equation, 
y = -2x + 6 
hence the gradient (or the slope) is -2. 
Hope this helps.