Suppose y=f(x)+k what effect does k have on the parent function

The table represents a linear function. what is the slope of the function? –6 –4 4 6

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

(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.