Find an equation for the tangent line to the graph of the given function at (-4,20). f(x) = x² +4
Find an equation for the tangent line to the graph of f(x) = x2 +4 at (- 4,20).
y=

(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.