Determine weather each relation is a function

(5,12), (-4,9), (-2,-7), (-4,0), (3,2)

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?