Task: Question Answering
Input (English): Problem: a straight line in the xy - plane has a slope of 2 and a y - intercept of 2 . on this line , what is the x - coordinate of the point whose y - coordinate is 520 ? 
Options: a ) 259 , b ) 498 , c ) 676 , d ) 823 , e ) 1,002
Output (English): a