Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

complete the table of values for the functions $f(x) = \\frac{1}{2}|x|$…

Question

complete the table of values for the functions $f(x) = \frac{1}{2}|x|$ and $g(x) = 2^x$.
write your answers as whole numbers, decimals, or simplified fractions or mixed numbers.

$x$$f(x)$$g(x)$
$-1$$\square$$\square$
$0$$\square$$\square$
$1$$\square$$\square$
$2$$\square$$\square$

based on the values in the table, where does the equation $f(x) = g(x)$ have a solution?
between $x = -2$ and $x = -1$ \quad $x = -1$
between $x = -1$ and $x = 0$ \quad $x = 0$

Explanation:

Response
Part 1: Completing the table for \( f(x) = \frac{1}{2}|x| \) and \( g(x) = 2^x \)
For \( f(x) = \frac{1}{2}|x| \):
  • When \( x = -2 \):

\( f(-2) = \frac{1}{2}|-2| = \frac{1}{2} \times 2 = 1 \)

  • When \( x = -1 \):

\( f(-1) = \frac{1}{2}|-1| = \frac{1}{2} \times 1 = 0.5 \)

  • When \( x = 0 \):

\( f(0) = \frac{1}{2}|0| = \frac{1}{2} \times 0 = 0 \)

  • When \( x = 1 \):

\( f(1) = \frac{1}{2}|1| = \frac{1}{2} \times 1 = 0.5 \)

  • When \( x = 2 \):

\( f(2) = \frac{1}{2}|2| = \frac{1}{2} \times 2 = 1 \)

For \( g(x) = 2^x \):
  • When \( x = -2 \):

\( g(-2) = 2^{-2} = \frac{1}{2^2} = \frac{1}{4} = 0.25 \)

  • When \( x = -1 \):

\( g(-1) = 2^{-1} = \frac{1}{2} = 0.5 \)

  • When \( x = 0 \):

\( g(0) = 2^0 = 1 \)

  • When \( x = 1 \):

\( g(1) = 2^1 = 2 \)

  • When \( x = 2 \):

\( g(2) = 2^2 = 4 \)

Filled Table:
\( x \)\( f(x) \)\( g(x) \)
\( -1 \)\( 0.5 \)\( 0.5 \)
\( 0 \)\( 0 \)\( 1 \)
\( 1 \)\( 0.5 \)\( 2 \)
\( 2 \)\( 1 \)\( 4 \)
Part 2: Solving \( f(x) = g(x) \)

We analyze the table values:

  • At \( x = -2 \): \( f(-2) = 1 \), \( g(-2) = 0.25 \) ( \( f > g \) )
  • At \( x = -1 \): \( f(-1) = 0.5 \), \( g(-1) = 0.5 \) ( \( f = g \) )

Answer:

(Table Completion):

\( x \)\( f(x) \)\( g(x) \)
\( -1 \)\( 0.5 \)\( 0.5 \)
\( 0 \)\( 0 \)\( 1 \)
\( 1 \)\( 0.5 \)\( 2 \)
\( 2 \)\( 1 \)\( 4 \)