1 2 O –4 –3 –2 –1 –2 –4 –5 (2) (c) Use your graph to find estimates for the solutions of + 3 = 0 x² x – [Grade B] ………………………. (2) Practice Paper Set C Unit 3 (Modular) Higher Calculator Q4 – – – – 16.2 (a) Complete the table of values for = 2x2 1 y – 0 1 2 x –2 –1 7 1 y (2) (b) On the grid below, draw the graph of = 2x2 1 for values of from = to = 2 y x x x – –2 (2) (c) Use your graph to write down estimates of the solutions of the equation 2x2 1 = 0 – [Grade B] .................................................................... (2) June 2012 Unit 3 (Modular) Higher Calculator Q11 – – – – (a) Complete the table of values for = 4 16.3 y x2 – 0 1 2 3 x –3 –2 –1 0 0 5 y –3 (2) (b) On the grid, draw the graph of = 4 for = to = 3 y x2 x x – –3 (2) (Total for Question 6 is 4 marks) March 2013 Unit 3 (Modular) Higher Calculator Q6 – – – –
–4 –3 –2 –1 O 1 2 –2 –4 –5 (2) (c) Use your graph to find estimates for the solutions of x² + x – 3 = 0 [Grade B] ………………………. (2) Practice Paper Set C – Unit 3 (Modular) – Higher – Calculator – Q4 16.2 (a) Complete the table of values for y = 2x2 – 1 x –2 –1 0 1 2 y 7 1 (2) (b) On the grid below, draw the graph of y = 2x2 – 1 for values of x from x = –2 to x = 2 (2) (c) Use your graph to write down estimates of the solutions of the equation 2x2 – 1 = 0 [Grade B] .................................................................... (2) June 2012 – Unit 3 (Modular) – Higher – Calculator – Q11 16.3 (a) Complete the table of values for y = x2 – 4 x –3 –2 –1 0 1 2 3 y 0 –3 0 5 (2) (b) On the grid, draw the graph of y = x2 – 4 for x = –3 to x = 3 (2) (Total for Question 6 is 4 marks) March 2013 – Unit 3 (Modular) – Higher – Calculator – Q6