### 9.3 Textbook Questions: 6, 9, 12 ,15

**a)**

If you want to check if the wage you made was right, you can

**check it by using the formula**. You can do it**three times**to make sure the pattern is right.
W = 5d W = 5d W = 5d

W = 5(1) W = 5(2) W = 5(3)

W = 5 W = 10 W = 15

**b) c)**

No, it's not reasonable to have points between the graph because the number of dogs has to be a whole number.

**a)**

**b)**

**c)**

**d)**

a) The coordinates are (0,0).

**a)**

**b)**The next logical value to use for Mass of Purchase is 400g because the pattern is going up by 100g.

**c)**

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