Which set of ordered pairs represents y as a function of x? A: {(2,5), (3,1), (2,1), (4,7)}
B: {(3,2), (4,3), (5,2), (2,6)}
C: {(1,3), (3,5), (2,5), (1,6)}
D: {(4,7), (4,6), (4,4), (4,1)}

May I get an explanation? I'm tired of looking through the internet and not finding anything :(

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0

60: 45 =12: 9 =4: 3 so the answer is 4: 3