Question

What are the x and y intercepts, test point, and what type of line do I use for 2y+x<10? Please helpp!

Answer 1

Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

Answer 2

test the origin

Answer 3

first sketch the line 2y +x = 10 ( and it should be dashed because its only less than ( not less than or equal )

Answer 4

the line has x intercept ( set y=0) of 10 , and y intercept ( set x=0 ) of 5

Answer 5

so i fill Y in with zero and get an answer then I fil x in with zero and get another answer? then I graph it and shade everything to right?

Answer 6

I understand completely now. Thanks sooo muchhh(:

Answer 7

and can I use 1 as a test point?

Answer 8

1 isnt a point

Answer 9

you usually use the origin

Answer 10

(0,1) ?

Answer 11

unless the graph goes throught the origin

Answer 12

yes , but 0,0 makes things easier, because you sub 0 into something alot of things disappear

Answer 13

Oh that makes more sense. thanks.

Answer 14

except for this like cosx , where cos 0 = 1

Answer 15

when you draw the line, it cuts the plane into two sections, and its either one section or the other , then you check a point ( you can pick any you like by (0,0) or (1,0) , smal numbers are easiest , you find a point where the inequality holds, and then you know the inequality is true in the "half plane " where your test point was.

Answer 16

similarly , if you were to sub in the origin and it didnt satisfy the inequality then you know the region you want is the one that doesnt contain the origin

Answer 17

Ok thanks. this helped so much cause I have Algebra finals tomorrrow. But again, thanks so much, this means a lot. Goodnight(: