Question

A. f(x)= 3x² +4, g(x) = 2, and h={(1,2), (2,1),(3,2)}? f is the only function B. h is the only function C. fand g are the only functions D. f, g and h are all functions

plz i want complete solution​

Answer 1

Step-by-step explanation:

2x

2

−Kx+x+8=0

2x

2

+(1−K)x+8=0

For real and equal roots

D=0

(1−K)

2

−4.2.8=0

K

2

−2K−63=0

(K−9)(K+7)=0

K=9 or −7