Question

i will show a picture of the graph and also write it in words

Select the system of equations that corresponds to the given graph.

A coordinate plane shows two lines on the graph. One line crosses the y axis at (0, 2) and passes through the x axis at (3, 0). The other line crosses the y axis at (0, 2) and passes through the point (2, -1).

-2x - y = 4
2x + y = -2
-8x + 4y = -16
-4x + 2y = -8
x - 2y = 6
-2x + y = 4
2x + 3y = 6
3x + 2y = 4

Answer 1

@emmyloohoo2 can you help or see if you know someone that can?

Answer 2

and if you can do this one or help me with it i would really appreciate and you will also recieve a medal for your hard work

Answer 3

Which point lies in the solution set for the following system of inequalities?
y < x + 4
y < -2x + 2

(2, 3)

(0, -5)

(0, 5)

(1, 0)

Answer 4

Do you know how to graph inequalities?

Answer 5

no

Answer 6

It's similar to the y=mx+b format. the y intercept (or b) (where the line will cross y) is the last number in the equation. and m is the slope which comes before x in the equation.

With inequalities you shade a graph depending on the sign that's given. If it's a < then you shade all the numbers below the line. If it's > then you shade the number above the line. The line is a dotted line in an inequality graph. But if it's a less than or equal to or a greater than or equal to sign, then the line is a solid line (because y could equal the numbers on the line [which is the or equal to part])All the shaded numbers are possible solutions.

The systems of inequalities problem can be graphed to be solved.

There will be a place on the graph where the two shaded parts meet and that's your solution set.

To check your solution you can plug in the coordinates to the inequality and if y<x then the answer's right! (When you have mult choice like this you can plug in the coordinates anyway until you find one that works....but I know the answers aren't always mult choice :/) (some people also don't solve by graphing, they solve like a system of equations which i'm not very good at)

Answer 7

Also, can there be more than one answer here?

Answer 8

If you look at the graph then there are 2 solutions I'm seeing

Answer 9

yes i know how to use the y = mx + b

Answer 10

Wait, there are NOT two solutions, i was forgetting this was a dotted line system. Just look at the graph and in the shaded area of the two shaded areas is the solution.

Answer 11

i'm very lost

Answer 12

is it ok if you just give me the answers and explain how you got the answer that is how i usually understand

Answer 13

Absolutely. I'm the same way, sorry. I get (0,-5) because it's the only coordinate that would be in the purple shaded part of the graph.

Answer 14

oh ok i should guessed that too i fell so dumb and what about the first one?

Answer 15

The first one I honestly don't know how to solve because I'm not good at system of equations. BUT if you need a quick answer you can plug in the solution of the system (where the lines cross) at (0,2) and figure out the answer. I'll do that right quick and then tell you what I think.

Answer 16

ok thank you so much you are truly the best!!!!!!!!!!!!!!!!!!!!!!!!11

Answer 17

I get the last choice because 0,2 works when plugged into both equations. I'm getting tutoring in systems of equations right now because I'm not that good at them and always use this working backwards option when there's Multiple Choice :)

Answer 18

thank you so much you deserve a medal

Answer 19

haha thanks :D

Answer 20

np

Answer 21

i will aubmitt it tomorrow and tell you what i get