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Janice is 7 years older than Tam. Complete the table, and then graph this situation.


Tam

x(years)

2 9

4 ?

6 ?

8 ?

Sagot :

Yersanabriaidn

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.

View image Yersanabria
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