Practice Test 8

Use the table to approximate the solution to $f(x)=g(x)$, where $f(x)=x^3$ and $g(x)=2x+5$. Choose the best estimate for the solution to the nearest tenth.

Table:

A student graphs $y=f(x)$ and $y=g(x)$ and sees that they intersect at the point $(a,b)$. Which statement best explains why $x=a$ is a solution to $f(x)=g(x)$?