Question

Find three solutions of the equation.

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a.

(–2, 3), (1, –3), (2, –4)

c.

(1, –3), (0, –1), (–1, 0)
b.

(–2, 3), (1, –3), (0, –1)

d.

(0, –1), (3, –9), (–2, 3)

Answer 1

Where is the equation?

Answer 2

y = -2x -1 @desiswag

Answer 3

just test the points

Answer 4

That's true you could do that @amandalepore

Answer 5

(-2,3) this means when x=-2 y = 3
y=-2x-1
3=-2(-2)-1
are both sides equal? If so then that is a solution, if not then go to choice B and test those points

Answer 6

so its B?

Answer 7

no I said go test those points to see if it is B

Answer 8

Whats the answer? :/

Answer 9

Try to test the points

Answer 10

I don't know how lol

Answer 11

Welcome to open study. I know this is your first question. Our goal at this site it to help you understand the process (oh that means study)

Answer 12

I just gave you an example

Answer 13

(-2,3) is a coordinate
(x,y) is the coordinate
this is how we say x=-2 and y=3

Answer 14

(-2,3) this means when x=-2 y = 3
y=-2x-1
3=-2(-2)-1
use the order of operation to evaluate the right hand side

Answer 15

is it C?

Answer 16

sorry we are not allowed to take quizzes, or exams for people

Answer 17

No, I did the work I just want to know If im correct?

Answer 18

perhaps @desiswag can explain it a little better than I can

Answer 19

@amandalepore did both sides equal each other when you plugged in the points? if so, then c is the answer. when you plugged in the points, did both sides of the equation equal each other?

Answer 20

Yes! so its C?

Answer 21

c (the second choice listed) doesnt look quite right. Look at the last set of points, (-1,0). 0 = -2(-1) -1 --> 0 = 2 - 1 --> 0 =1

Answer 22

try the third choice listed

Answer 23

Right..I did some work , does C seem right?

Answer 24

@desiswag

Answer 25

c as in the third choice listed?

Answer 26

Yes

Answer 27

Yup! That's right! My bad, I thought c was the second choice in your question

Answer 28

Thank you so much! life saver!

Answer 29

yw :)