Question

http://roads.advancedacademics.com/contentserver/content/roadssection/277506/questions/6hw4/6hw4graph_q5.bmp

Which system is represented by the graph?



A. y ≥ - x - 1
y < 2x + 2
B. y ≤ -x + 2
y < 2x - 1
C. y < - x - 1
y ≥ 2x + 2
D. y > - x + 2
y ≤ 2x - 1

??

Answer 1

I wanna say

y < - x - 1
y ≥ 2x + 2

Answer 2

the way I do it is fine y= mx + b

one of them is y=2x+2 for sure

to test for a <, > ...

you start testing. like just chose 0

0+2=2 Does y lie above it ( is it shaded it in)? Yes therfore y > other wise y<

Answer 3

also it could lie on it if it does and it is solid not dashed then you can say greater than or equal too.

Answer 4

thanks!