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A chess team is ordering customized T-shirts for a competition. The table shows the cost of orderi
Number of T-shirts, 6 12 18
24
Cost (dollars), y
108
180
252
324
A linear model is yr

A chess team is ordering customized Tshirts for a competition The table shows the cost of orderi Number of Tshirts 6 12 18 24 Cost dollars y 108 180 252 324 A l class=

Respuesta :

Notice that there is a pattern between them.
324-252 = 72
180-108 = 72

Notice that 72 is the rising factors for the numbers
108 + 72 = 180
180 + 72 = 252
252 + 72 = 324

Therefore 72 is the linear increase.
So y = 72
sharkdash7891

Answer:

12x+36

Step-by-step explanation:

If we subtract 36 from all 4 y's we get 72, 144, 216, and 288. We divide each one by 6, 12, 18, and 24. After we divide them up, we get 12 for each one. Now we need to set the equation up, it has to be 12x because the price of just one T-shirt is $12, the x is how many T-shirts are bought. The 36 is the b-intercept of the equation, and since we write this in y=mx+b, the equation is y=12x+36.    

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