If , what is ?
Answer and explanation
Correct answer: B. 32
- 35 miscalculates the sum as or forgets to subtract .
- -4 evaluates or makes an order-of-operations sign error.
- 20 treats as ().
- -4 evaluates or makes an order-of-operations sign error.
- 20 treats as ().
- Step 1: Substitute into : .
- Step 2: Compute each term: so , and .
- Step 3: Combine: .
Answer
.
Practise more Functions.
Free questions with an explanation for every one, and full timed SAT mock tests.