Carmen was asked to identify the relative extrema of the polynomial function h(x)

. Which of the following statements should she make?
grid points (0,0) (0.5,1.75) (2,0) (3,3)
(1 point)
Responses

There is an absolute minimum at x=0.5
.
There is an absolute minimum at x equals 0.5 .

There is a relative maximum at x=0.5
.
There is a relative maximum at x equals 0.5 .

There is an absolute maximum at x=0.5
.
There is an absolute maximum at x equals 0.5 .

There is an absolute minimum at x=0.5
and a relative minimum at x=2
.
There is an absolute minimum at x equals 0.5 and a relative minimum at x equals 2 .

1 answer

To determine the correct statements about the relative and absolute extrema of the polynomial function \( h(x) \), we need to analyze the given grid points.

The grid points provided are:

  • (0, 0)
  • (0.5, 1.75)
  • (2, 0)
  • (3, 3)

Evaluation of Extrema:

  1. At \( x = 0 \), \( h(0) = 0 \).
  2. At \( x = 0.5 \), \( h(0.5) = 1.75 \).
  3. At \( x = 2 \), \( h(2) = 0 \).
  4. At \( x = 3 \), \( h(3) = 3 \).

Absolute Extrema:

  • The lowest value occurs at both \( x = 0 \) and \( x = 2 \) with \( h(0) = 0 \) and \( h(2) = 0 \). Therefore, there is no absolute minimum, as they share the same value.
  • The highest value occurs at \( x = 3 \) with \( h(3) = 3 \), so there is an absolute maximum at \( x=3 \).

Relative Extrema:

  • At \( x = 0.5 \), the function increases from \( (0,0) \) to \( (0.5, 1.75) \) and then decreases to \( (2,0) \), indicating that this point is a relative maximum.
  • At \( x = 2 \), it decreases from \( (0.5, 1.75) \) to \( (2, 0) \) and then increases to \( (3, 3) \), indicating that this point is a relative minimum.

Conclusion:

  • There is a relative maximum at \( x = 0.5 \).
  • There is a relative minimum at \( x = 2 \).
  • There is an absolute maximum at \( x = 3 \).

Based on this analysis, the statements Carmen should make include:

  • There is a relative maximum at \( x = 0.5 \).
  • There is a relative minimum at \( x = 2 \).

Note that there is no absolute minimum at \( x = 0.5\).

Therefore, the correct response for extremum analysis is:

  • There is a relative maximum at \( x = 0.5 \) and a relative minimum at \( x = 2 \).