Look at the table of values for the functions f(x) = x^2 - 2 and g(x) = |x - 2|. Ba...
Check the final answer first, then review the worked steps.
Check the final answer first, then review the worked steps.
- Interval between $x=0$ and $x=1$:
At $x=0$, $f(0) = -2$ and $g(0) = 2$. So, $g(0) > f(0)$.
At $x=1$, $f(1) = -1$ and $g(1) = 1$. So, $g(1) > f(1)$.
Since $g(x)$ is greater than $f(x)$ at both ends of this interval, and both functions are continuous, it's unlikely they intersect within this interval unless they touch and separate without crossing, which is not the case here as $g(x)$ is consistently above $f(x)$.
- Interval between $x=1$ and $x=2$:
At $x=1$, $f(1) = -1$ and $g(1) = 1$. So, $g(1) > f(1)$.
At $x=2$, $f(2) = 2$ and $g(2) = 0$. So, $f(2) > g(2)$.
In this interval, $g(x)$ starts above $f(x)$ (at $x=1$) and ends up below $f(x)$ (at $x=2$). Because both functions are continuous, the Intermediate Value Theorem guarantees that there must be at least one point $x$ between 1 and 2 where $f(x) = g(x)$.
- Interval between $x=2$ and $x=3$:
At $x=2$, $f(2) = 2$ and $g(2) = 0$. So, $f(2) > g(2)$.
At $x=3$, $f(3) = 7$ and $g(3) = 1$. So, $f(3) > g(3)$.
Here, $f(x)$ is greater than $g(x)$ at both ends of the interval, so no solution is guaranteed in this interval.
- Interval between $x=3$ and $x=4$:
At $x=3$, $f(3) = 7$ and $g(3) = 1$. So, $f(3) > g(3)$.
At $x=4$, $f(4) = 14$ and $g(4) = 2$. So, $f(4) > g(4)$.
Here, $f(x)$ is greater than $g(x)$ at both ends of the interval, so no solution is guaranteed in this interval.