Question

https://static.k12.com/nextgen_media/assets/8090405-NG_AL1_L_01_U09_Quiz_03.png

A system of linear equations is graphed.

Which ordered pair is the best estimate for the solution to the system?

A. (2,−6.5)

B. (0,−6.5)

C. (2.5,−6.5)

D. (−1.5,0)

Answer 1

@Vocaloid

Answer 2

try to estimate what the x and y coordinate of that point are

Answer 3

D.

Answer 4

let's do a quick review of how to read a point on a graph

Answer 5

first, we find the x-coordinate by seeing how far to the left or how far to the right the point is

Answer 6

it looks like the point is about ~ 2 units to the right of x = 0

so we say that the x-coordinate is about 2

Answer 7

for the y-coordinate, we will see how far down or up it goes compared to y = 0

Answer 8

the point looks like it's about 6.5 units below 0 so we say it has a y-coordinate of about -6.5

Answer 9

is anything I said unclear or confusing?

Answer 10

oh no totally get you so far

Answer 11

so A. (2,−6.5) is the best estimate of the solution = your answer

Answer 12

Graph the system of equations on graph paper.

{6x + 4y = 24
{2x − 4y = −8

Which statements are true about the solution to the system of equations?

Select each correct answer.




The ordered pair that is the solution to the system lies in Quadrant I .

The ordered pair that is the solution to the system lies in Quadrant IV .

The y-coordinate of the solution is 3.

The x-coordinate of the solution is 2.

The x-coordinate of the solution is 3.

The y-coordinate of the solution is −2 .

Answer 13

i think we've done this right ?

Answer 14

yeah I think we got (2,3) for this one

Answer 15

you think ?

Answer 16

the first one and those two ?

Answer 17

I just double checked the math and yes x = 2 and y = 3 in quadrant I

Answer 18

oh ok that's correct

Answer 19

Use a graphing tool to solve the system.

{13x + 6y = −30
{x − 2y = −4


Which ordered pair is the best estimate for the solution to the system?


A. (−2.5,0.25)

B. (−2.5,0.75)

C. (0.75,−3.25)

D. (−1.25,1.75)

Answer 20

have you tried graphing this yet?

Answer 21

i'm very glad you asked me that question and i'm happy to answer it for you

Answer 22

good, that graph is correct

now try estimating what the x/y coordinates for that would be

Answer 23

* for the intersection i mean

Answer 24

i solved it and the answer is D

Answer 25

please check your math again

Answer 26

OK, scratch B and D, it's either A or C so it's A

Answer 27

when you have obtained your solution please check if x and y are the correct value by plugging them back into the equation

Answer 28

oh ok

Answer 29

you cannot just eliminate answers randomly, you have to do the graphing/calculations

Answer 30

ok, that's my mistakes it's B i just graphed and it shows B cause the point is on where it shows on the problem

Answer 31

good, B is correct

Answer 32

I need to get going, might be on later tonight