please help me
what is it asking me?
>tfw too dumb to understand this problem
It says "Why didn't you do your homework on Saturday instead of frantically at midnight on a Monday?"
>>36152342
Just draw the line y=2 on the graph and it's all the points below that, the answer is x < 0 or x >= 0.5
>>36152342
What y(x) do you have for every (1/x) that is less than or equal to two?
>>36152342
>what is it asking me?
it is asking you to solve 1/x <= 2, idiote
what values of x make 1/x less than or equal to two.
How old are you?
At which values of x is y greater than or equal to 2? The value of y is given to you. It is equal to 1/x. If you look at the graph it would appear that y is equal or greater than 2 for the values of x between zero and one half. You can confirm this algebraically. 1/x as x approaches zero is equal to infinity. 0 is the lower bound that satisfies the inequality. 1/x when x is equal to one half is 2. This is the upper bound of the inequality.
Its asking you which values of x when 1 is divided by them are less than 2.
>>36152342
What pisses me off is that it asks you to use the graph to solve it. What the fuck?
>>36152522
It helps people visualize it, albeit in an abstract sort of way.
>>36152522
Just look at the graph. Between which values on the x-axis are the corresponding values on the y-axis greater than or equal to two. That's all that it's asking.
color in the entire left side of the graph and everything on the right except between x=0 and x=0.5
your answer is (-inf, 0), [0.5,inf)
this is an actual representation of the ''friendzone'' where OP is at 0,0
>>36152558
Yeah, I'm not the OP -- my issue is that looking at the equation is like instantaneously looking at the answer. Maybe that's my autism kicking in.
>>36152613
Well, it is just looking at the answer. I think the pedagogic intent is to make the student realize that the line does in fact simply show you the answer.
Okay so I got the answer here.
My question is: from looking at the graph, how do I know when to answer in brackets, and when in parentheses?
>>36152342
I don't even know what the lines and the x's mean or what it wants me to do. Am I retarded?
>>36152803
>My question is: from looking at the graph, how do I know when to answer in brackets, and when in parentheses?
[0, 1] means all the points between 0 and 1, including 0 and 1
(0,1) means all the points between 0 and 1, not including 0 and 1
brackets include the number
parentheses don't include the number
always use parentheses for infinity, like
[0, infinity)
>>36152803
solve the equations as if they were equalities. Less than or equal literally means the number is either less than or equal to the other side.
>>36152803
The bracket is an inclusive boundary, the parenthesis is an exclusive boundary. Meaning that [2,5) would indicate greater than OR EQUAL to 2 and less than BUT NOT EQUAL TO 5.
>>36152342
>tfw studying calc 3 and I unironically can't do this problem
>>36152931
what the fuck, mang? how did you make it that far?
>>36152972
I honestly don't know.
Would you believe I got an A in calc 2?
>>36152982
how the fuck did you do that?
is it that easy, or are you some kinda wizard?
>>36152342
Isn't it just x = (-inf,.0)U(0,.5)U(.5,inf) ?
basically x =/= .5 that's way simpler
>>36153013
>is it that easy
No.
Calc 2 was literally the hardest thing I've ever done. After I clinched the exam I basically forget everything now I'm getting rekt in calc 3
>>36153038
oh wait I had a brainlet moment it would be
x =(-inf, 0)U(.5, inf)
lmao so much for a math degree.
>>36152878
>>36152887
>>36152890
thank you kind anons
this is not original