Question

Which ordered pairs are solutions to the equation?

y = x – 4

A.
(10, 4) and (5, 1)

B.
(10, 5) and (5, 1)

C.
(10, 6) and (5, 1)

D.
(10, 6) and (1, 5)

Answer 1

Let's start with choice A

Answer 2

OK so now working with choice A, let's start with the first coordinates. (10, 4), 10 = x, 4 = y, so plug it in into the equation given

4 = 10 - 4

Answer 3

Is 4 = 10 - 4 true?

Answer 4

i dont think yea

Answer 5

So what is 10 - 4?

Answer 6

It's 6, right?

4 = 10 - 4
4 = 6

4 does not equal 6, so therefor it isn't true. That also tells us that A isn't our answer

Answer 7

10-6 so thats worng

Answer 8

So now onto choice B and the first coordinate given. (10, 5) 10 = x, 5 = y

5 = 10 - 4
Is this true?

Answer 9

no

Answer 10

So B isn't our answer either. Onto C and the first coordinate given, (10, 6), 10 = x, and 6 = y

Plug them in

6 = 10 - 4

Is this true?

Answer 11

yes

Answer 12

Right, so now lets see if this is our final answer by doing the second coordinate given, (5, 1) where 5 = x and 1 = y
1 = 5 - 4

Is this true?

Answer 13

yes

Answer 14

OK so that means C is our answers since both coordinates are true!

Answer 15

:)

Answer 16

If you need any more help, you know what to do =3

Answer 17

can you help me with more lol please sammic:3

Answer 18

Sure =) Sorry I was taking my dog outside. Make sure to post it on a diff post

Answer 19

kk