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PRACTICAL MATHEMATICS 



(17) Find which of the three laws y = a + bx n , y=b(x + a) n , 

 and y = a-\- be nx suit the following value of x and y. 



Having decided upon the probable law, take three points on 

 the curve and find the values of the constants a, b, and n. 



(18) Find which of the three laws y = a + bx n , y = b (x + a) n , 

 and y = a + be nx suit the following values of x and y. 



Having decided upon the probable law, take three points on 

 the curve and find the values of the constants a, b, and n. 



