Question

29
Find f (-7)when f (x) =--
x-4

A

B

C

D

29
7

29
11

7
29

11
29

Answer 1

I can't be sure how the fraction was meant from your formatting. Please confirm the function exactly (show the numerator and any minus sign).

Meanwhile, here are the answers for the likely interpretations:

- If f(x) = 29/(x − 4), then f(−7) = 29/(−11) = −29/11.
- If f(x) = −29/(x − 4), then f(−7) = −29/(−11) = 29/11.
- If f(x) = (x − 4)/29, then f(−7) = (−11)/29 = −11/29.
- If f(x) = −(x − 4)/29, then f(−7) = 11/29.

From your multiple-choice list (29/7, 29/11, 7/29, 11/29), 29/11 matches the second case (f(x) = −29/(x−4)) and 11/29 matches the fourth case (f(x) = −(x−4)/29). Tell me which function is correct and I’ll pick the right option.