anonymous
  • anonymous
Which ordered pairs from the replacement set are solutions to the equation? y = -2x + 9 ; Replacement Set {((-1, 11), (0, 8), (1, 7), (2, 5)} (-1, 11) (0, 8) (1, 7) (2, 5)
Mathematics
schrodinger
  • schrodinger
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
Each ordered pair is of the form:\[(x _{1}, y _{1})\]You take each ordered pair and substitute like so:\[y _{1} = -2x _{1} + 9\]and see if it is true. You do this for each ordered pair, one at a time and test it. For your first ordered pair, the x1 = -1 and the y1 = 11. So, you can test the first one by substituting those values.
anonymous
  • anonymous
So you ask yourself if: 11 = -2(-1) + 9 is true or not.
anonymous
  • anonymous
What is -2(-1) ? Hint: that is -2 times -1

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
2
anonymous
  • anonymous
so -1,11 works
anonymous
  • anonymous
To perform multiplication with negative signs, you first multiply the numbers and then if the number of "-" signs is an even number, you have a positive result. Just saw your answer, so you probably already understand this. Good. So, continuing: 11 = -2(-1) + 9 -> 11 = 2 + 9 Yes, you already saw now that it works. Good job. Now just check the other 3 ordered pairs. Hint: only one doesn't work.
anonymous
  • anonymous
ok thanks:)
anonymous
  • anonymous
So, this is making sense to you now?
anonymous
  • anonymous
yes it is I just needed a refresher
anonymous
  • anonymous
I'm glad you're getting this. It's a great feeling when understanding comes. It's like a gift.
anonymous
  • anonymous
Good luck again and thx for the recognition!

Looking for something else?

Not the answer you are looking for? Search for more explanations.