Which functions are linear? select all that are correct.
x
0
1 2
3
4
y
5
4.5
4
3.5
3
y = 2x – 22
-5 -4 -3 -2 -1 0
1
2
3
4
5

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.