KimDahDahyun
Answered

At Westonci.ca, we connect you with the answers you need, thanks to our active and informed community. Experience the convenience of getting accurate answers to your questions from a dedicated community of professionals. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

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 :

bowmaian000

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

Thank you for trusting us with your questions. We're here to help you find accurate answers quickly and efficiently. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.