Answer :
Answer:
The table in the exercise can be completed with the next results:
- x y
- 2 9
- 4 11
- 6 13
- 8 15
Step-by-step explanation:
As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:
- y = x + 7
Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:
When x is 2:
- y = 2 + 7
- y = 9
When x is 4:
- y = 4 + 7
- y = 11
When x is 6:
- y = 6 + 7
- y = 13
When x is 8:
- y = 8 + 7
- y = 15
At last, to obtain the graph you can use the formula made: y = x + 7, and you'll obtain a graph like the attached picture, where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7.
