Question

Which of these is the solution to this system of linear equations

Answer 1

2y>=4x-1
y<=2x+4
y<=2x+4
2y>=x-4

Answer 2

@bibby

Answer 3

what are you typing?

Answer 4

nothing ?

Answer 5

oh, it said you were typing for like 5 minutes. I don't really know how to do these so I'm gonna go with trial and error.

Let's start by picking a random point in the shaded area. (1,1)

Answer 6

plug it into each inequality and cross out the ones where it doesn't fit

Answer 7

for example
2(1)>=4(1)-1
\(2\ge 4-1\\2 \ge 3 \longrightarrow false\)

so we can cancel that choice

Answer 8

okay so are we plugging in and solving ?

Answer 9

we canceled A by plugging in (1,1) to each inequality

Try it with (-1,1)

Answer 10

I just realized choices b and c are the same

Answer 11

so do i plug in 1,1 tot he rest to ?

Answer 12

I already did that last night, nothing else canceled

Answer 13

Can you rewrite the choices?

Answer 14

ys one sec

Answer 15

y<=2x+4
2y>=4x-1
2y>=x-4
y<=4x+2

Answer 16

well, that's different

Answer 17

is that A B C and D?

Answer 18

yess

Answer 19

...and you're only supposed to pick one?