Create a table and graph for the relation y = 3x − 2 for x = -2, -1, 0, 1, 2. Use the graph to find y when x = 2.5 and x when y = 7.

Here's the solution for question 4.

4. (a) Create a table for the relation $y = 3x - 2$ for $x = -2, -1, 0, 1, 2$.

Step 1: Calculate $y$ for each given $x$ value using the relation $y = 3x - 2$.

• For $x = -2$: $y = 3(-2) - 2 = -6 - 2 = -8$
• For $x = -1$: $y = 3(-1) - 2 = -3 - 2 = -5$
• For $x = 0$: $y = 3(0) - 2 = 0 - 2 = -2$
• For $x = 1$: $y = 3(1) - 2 = 3 - 2 = 1$
• For $x = 2$: $y = 3(2) - 2 = 6 - 2 = 4$

Step 2: Form the table.

$x$	$y$
-2	-8
-1	-5
0	-2
1	1
2	4

4. (b) Draw the graph of the relation and use it to find: