KimDahDahyunidn
Answered

From personal advice to professional guidance, IDNLearn.com has the answers you seek. Join our community to access reliable and comprehensive responses to your questions from experienced professionals.

Determine whether or not each of the following points is a solution of the inequality y 2x2 + 3x -5.
1. B (1,8)
2.C (-5,10)
3. D (3,6)
4. E (-3,4)
5. F (2,9)​

Sagot :

Bowmaian000idn

Answer:

E(-3,4) and F(2,9)

Step-by-step explanation:

If we plug in for x to see what we get for y:

(1,8):

y = 2(1)^2+ 3(1) - 5

y = 2 + 3 - 5

y = 0

This is wrong.

(-5,10):

y = 2(-5)^2 + 3(-5) -5

y = 50 - 15 - 5

y = 30

This is wrong.

(3,6):

y = 2(3)^2 + 3(3) - 5

y = 18 + 9 - 5

y = 22

This is wrong.

(-3, 4):

y = 2(-3)^2 + 3(-3) - 5

y = 18 - 9 - 5

y = 3

This is correct!

Lets check the last one...:

(2,9):

y = 2(2)^2 + 3(2) - 5

y = 8 + 6 - 5

y = 9

This is also correct!

So your right answers are:

E and F!

Hope this helps! :D

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Your questions deserve precise answers. Thank you for visiting IDNLearn.com, and see you again soon for more helpful information.