y = abx
[tex]\text{ y = ab}^x[/tex][tex]\begin{gathered} \text{ 18 = ab}^0 \\ \text{and 6174 = ab}^3 \\ \text{then} \\ a\text{ = 18} \\ \text{ 6174 = 18b}^3 \\ \text{ b}^3\text{ = }\frac{6174}{18} \\ b^3=343^{} \\ b\text{ = 7} \\ \end{gathered}[/tex]
The equation is
[tex]\text{ y = 18(7)}^x[/tex]
