Question

Choose all correct answers. Which of the following are solutions of the system?
x < 3 and x + y < 5
A. (4, 2)
B. (2, 2)
C. (-1, 0)
D. (2, -1)

(im not trying to cheat i just really dont get this stuff)

Answer 1

we know x < 3, so we automatically know that the point must have an x coordinate less than 3

Answer 2

so this means that choice A is automatically out

Answer 3

is it b?

Answer 4

The rest of the points all have x coordinates less than 3, so we need to test them all

Answer 5

Testing (2,2)

x + y < 5


2 + 2 < 5


4 < 5 ... true


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Testing (-1,0)

x + y < 5


-1 + 0 < 5


-1 < 5 ... true

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I'll let you test the last one (2,-1)


Tell me what you get for your answers (you can choose more than one)

Answer 6

b, c, and d?

Answer 7

good, you got it

Answer 8

thanks for the help (:

Answer 9

anytime :)