Does each relation represent a function? Choose Yes or No. (1, 3), (2, 5), (2, 7), (4, 9)

(1, 3), (2, 5), (3, 7), (4, 9)

(1, 3), (1, 5), (1, 7), (1, 9)

(1, 3), (2, 3), (3, 3), (4, 3)

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?