Question

f = {(a, 2) {(2, 4) {(2, 5) {(3, 9)}, is its function or not (T/F)

• A. True
• B. False
• C. Uncertain
• D. None of these

Answer 1

Answer: (B)

False

$f=\left\{\right(a,2\left)\right(2,4\left)\right(2,5\left)\right(3,9\left)\right\}$

Hence ${}^{\prime }{f}^{\prime }$ is not a function as one of the input (i.e.,$2$) has two possible values.

Answer:-$B$.