Question

Which ordered pairs are solutions to the equation?

y = 2x + 5

A.
(15, 5) and (2, 9)

B.
(5, 10) and (2, 9)

C.
(5, 15) and (9, 2)

D.
(5, 15) and (2, 9)

Answer 1

can you help?

Answer 2

Hey!

Answer 3

We need to plug in the points into the equation and see if they work!

Answer 4

I'll do one point as an example for you!!

(15,5)

That is in the form of (x,y)

x = 15
y = 5

Plug it in to the equation!

y = 2x + 5
5 = 2(15) + 5
5 = 30 + 5
5 = 35

That is not true, so (15,5) is not a solution to the equation!

That means we can eliminate any answers that has (15,5)

Answer 5

Just plug in the numbers for x and y:

(5, 15) and (2, 9)

The 5 and the 2 is a x, and the 15 and the 9 is a y.

y = 2x + 5

15=2(5)+5

15=10+5

15=15 If it equals each other, then that means that it is the answer.

y = 2x + 5

9=2(2)+5

9=4+5

9=9

Your answer is (5, 15) and (2, 9)!

Answer 6

@Sushi121212 Doing all the work and giving the asker doesn't help them learn. :c

Please read the Code of Conduct which states the rules that OpenStudy users must follow.
http://openstudy.com/code-of-conduct

Answer 7

I'm sorry, I just wanted to help.