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## Roxanne is using successive approximation to solve this equation. She started from a graph, where she found the solu

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Roxanne is using successive approximation to solve this equation.

She started from a graph, where she found the solution to be between and 0. Using the lower and upper bounds from the graph, Roxanne started the first iteration of successive approximation.

Step 1

Rewrite the equation so it equals zero.

Step 2 Evaluate the rewritten equation at the lower and upper bounds.

Since the solution to the equation represents a zero, one bound should yield a negative value and the other should produce a positive value.

Step 3 Take the average of the lower and upper bounds from the graph.

Step 4 Evaluate the rewritten equation at .

Step 5 Since this value is positive, replace the previous lower bound so the bounds are now and .

Where did Roxanne make a mistake, and what was the error?

A.

Roxanne made a mistake in step 2. The actual evaluation of the rewritten equation at is .

B.

Roxanne made a mistake in step 4. The actual evaluation of the rewritten equation is approximately .

C.

Roxanne made a mistake in step 3. The average of the two bounds is .

D.

Roxanne made a mistake at step 5. She should have used as the new upper bound.

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Mathematics
6 months
2021-07-17T23:22:53+00:00
2021-07-17T23:22:53+00:00 1 Answers
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## Answers ( )

that answer is correct