Thelma wants to find the equation of a line that passes through the point (2,2) and is perpendicular to the line y=1/2x+5

perpendicular  slope :

m1 * m2 = -1

1/2 * m2 = -1

m2 = -2

y = -2x + b
 

2 = -4  +b

b = 6 

y = -2x + 6 

The answer is F, convex polygon, because a convex polygon by the definition is "when a polygon's line segments lie in the region if they connect to two vertices."
http://quizlet.com/10528903/fcat-20-8th-grade-chapter-5-flash-cards/ is a great link on quizlet where there is the term "convex polygon".
Hope this helps!