465,543 views
21 votes
21 votes
(−3,y) and (x,2).

y=4x+6
orderd pair

User Rinat Khanov
by
2.3k points

1 Answer

16 votes
16 votes
Recall that an ordered pair lists the x-coordinate first, then the y-coordinate last: (x, y). So, we know that in one of the pairs, x=-3, and we need to find y. We will plug x=-3 into the equation:

y=4(-3)+6

Following PEMDAS:

y=-6

So, the ordered pair is (-3, -6)

In the second ordered pair, (x, 2), we are given y=2 and need to find x. Input y=2 into the equation:

(2)=4x+6

Solving for X:

-4=4x

-1=x or x=-1

So, the second ordered pair is (-1, 2).


We can check these coordinates via the slope formula as the slope should equal 4 in the equation:

m=(2)-(-6)/(-1)-(-3)

m=8/2

m=4, so our coordinates are correct.
User Rhexis
by
3.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.