Use a graph to find an approximate solution to the equation. Round to the nearest thousandth.
-$$3 ^ { x } = 18$$
A) 0.380
B) 6.000
C) 2.631
D) 1.792

Question

Quizplus · Accepted Answer

To solve the equation $3^x = 18$ using a graph, plot the functions $y = 3^x$ and $y = 18$ on the same graph. The x-coordinate of the point where these two graphs intersect is the solution to the equation. Graphically, this solution is approximately $x = 2.631$, which is closest to choice C.

Use a Graph to Find an Approximate Solution to the Equation