A school bought several pairs of skis, each costing $40 and several pairs of skates, each costing $50. The cost of the whole pur
2 answers:
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Given:
The table of values of an exponential function.
To find:
The function for the given table of values.
Solution:
The general exponential function is:
...(i)
Where, a is the initial value and b is growth factor.
From the given table it is clear that the function passes through the points (1,9) and (2,36). It means the function must be true for these two points.
...(ii)
...(iii)
On dividing (iii) by (ii), we get
Putting in (ii), we get
Putting in (i), we get
The function notation with variable n is:
Therefore, the correct option is D.
