2. First Draw a T-chart A t-chart is used to keep the work organized.
3. Y = 3X + 7 X Equation goes here X-values here First Draw a T-chart
4. Choose 3 x-values It is good to pick at least one negative number a positive number and zero. Let X = -2, 0, 2 You can pick any x-values that you want. There is not a wrong answer for this part. If your x-values are large, they will take more room to graph.
5. Y = 3X + 7 X 3(-2) + 7 -2 0 2 3(0) + 7 3(2) + 7 Place each x-value into the equation
6. Y = 3X + 7 X 3(-2) + 7 = 1 -2 0 2 3(0) + 7 = 7 3(2) + 7 = 13 Compute the y-values
7. Y = 3X + 7 X 3(-2) + 7 = 1 -2 0 2 3(0) + 7 = 7 3(2) + 7 = 13 Match the x-value and the y-values X - values Y - values
8. Locate the Ordered Pairs ( -2 , 1 ) ( 0 , 7 ) ( 2 , 13 ) Plot these points on your graph.
9. Graph on Coordinate Grid Notice our graph only goes to 10 ,but our largest value is 13 on the y-axis. (-2,1) (0,7) (2,13)
10. Graph on Coordinate Grid Since my graph was not long enough, I chose to improvise and made my point extend off the grid. (-2,1) (0,7) (2,13) Another solution would have been to count by two’s on the graph.