Answer:
1. m=-1/2
Explanation:
The line is given in slope-intercept form, or 
y=mx+b 
where m is the slope and b is the y-intercept. 
Essentially, the number that is multiplied by x is the slope, and the number that is added or subtracted from the term with x is the y-intercept. 
The equation of line is: 
y= -1/2x+ 1/4 
-1/2 and x are being multiplied (-1/2*x= -1/2x). 1/4 is being added onto the term with x (-1/2x).
Therefore, the slope must be -1/2 and the y-intercept is 1/4. 
m= -1/2 
b= 1/4
The slope is -1/2 and the first choice is correct.