This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Prescription Analysis
Prompt focus: A prescription is written as minus 2.00 minus 1.00 times 090. When transposed to plus cylinder form, the prescription becomes
Why the correct answer works
minus 3.00 plus 1.00 times 180
Adding the cylinder to the sphere, reversing the cylinder sign, and rotating the axis 90 degrees yields minus 3.00 plus 1.00 times 180.
Why the tempting wrong answer fails
The tempting wrong answer usually loses because it skips the key condition, priority, or evidence in the prompt.
Plain-language takeaway
To transpose a prescription, add the cylinder to the sphere to obtain the new sphere, change the sign of the cylinder, and change the axis by 90 degrees. Here minus 2.00 plus minus 1.00 equals minus 3.00 for the new sphere, the…
Simple analogy
Think of prescription analysis like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.