(NEED HELP FAST, PLEASE!!) What is the difference of j and k? J(x)=x-14 K(x)=7+x A- (j-k)(x)=-21 B-(j-k)(x)=-21+2x C-(j-k)(x)=-7 D-(j-k)(x)=-7+2x

asked Oct 12, 2018 84.2k views

1 vote

(NEED HELP FAST, PLEASE!!)

What is the difference of j and k?

J(x)=x-14
K(x)=7+x

A- (j-k)(x)=-21
B-(j-k)(x)=-21+2x
C-(j-k)(x)=-7
D-(j-k)(x)=-7+2x

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2 votes

j(x)-k(x)=(x-14)-(7+x)=x-14-7-x=x-x-14-7=0-21=-21

answer is A

Tobias S answered Oct 18, 2018

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