1 Determine if the following are functions no yes

2 State domain and range of the function below: (1, -1) D: (- ,  ) R: [-1,  )

3 Write the relation shown in the mapping as a set of ordered pairs. {(0, 6), (1, 1), (-4, 0), (4, 1)}

4 State domain and range of the function below: D: [0, 3] R: [-6, 5]

5 Determine whether this relation is a function. Then state the domain and range. {(1, 4), (2, 3), (3, -6), (-3, 6)} D: {-3, 1, 2, 3} R: {-6, 3, 4, 6} Yes, it’s a function

6 Given that Find: a) f(-3) b) f(x + 2) = 3 = x 2 + 6x + 8

7 Given that f(x) = 2x -10 a) evaluate: f(3) b) solve f(x) = 32 = -4 x = 21

8 Express as a mapping for the domain {-1, 0, 1, 2, 3}. x y

9 Represent the function y = 2x 2 – 5, where x is an element of {–2, –1, 0, 1, 2, 3} by a mapping diagram. x y

10 Write the relation shown in the mapping as a set of ordered pairs. {(4, 3, )(4, 8), (1, 7), (-8, 1), (2, 1), (2, 3)}

11 For a small car hire company charges €22 per day plus 13 cents for each kilometer, d, driven. (a) Find the total cost, C, of hiring a car for a day if you travel (i) 50km (ii) 300km. (b)Find the equation connection the variables. (c) Using your equation find how many kilometers you traveled if your bill was €47. € € 61 C = d km

12 At Jumbo’s Burger Bar, Jumbo burgers cost £J each and regular cokes cost £C each. Two Jumbo burgers and three regular cokes cost £5.95. (a)Write an equation to show this. (b) If one Jumbo Burger costs £2.15, what is the cost, in pence, of one regular coke? 2J + 3C = pence

13 Are the following graphs functions? yesno

14 {(-5,0), (3,0), (14, 1), (2006, 1)} State the Domain and Range D: {-5, 3, 14, 2006} R: {0, 1}

15 Are the following functions? T={(-1,1), (2,1), (4,-1), (5,2) A={(a,c), (b,d), (e,f), (a,h)} yes no

16 Express the data below as a graph and a mapping xy x y