Plz check my answers so I can finish this up

Question

geekfromthefutur · Answer

attachment

anonymous · Answer

The first one is incorrect.
Let me check the second one...

anonymous · Answer

In the second question, is that a 
$$2\frac{ 2 }{ 3 }$$
or
$$2^{\frac{ 2 }{ 3 }}$$ where 2/3 is an exponent?

geekfromthefutur · Answer

2

anonymous · Answer

For the second answer, I got the first choice. $$\sqrt[2]{8}$$

geekfromthefutur · Answer

ok

anonymous · Answer

If you're confused maybe I could explain how I got my answers if you'd like.

geekfromthefutur · Answer

Well wat about the first one

anonymous · Answer

5x-y=7
2x+y=0

anonymous · Answer

For the graph... If you have a graphing calculator or an online grapher ( https://www.desmos.com/calculator), you could graph each answer to see which is correct, but if you want to solve it by hand... You could either convert each equation from standard form to slope intercept form, then graph your answers and compare your results with the graph or you could look at the graph to determine the slope intercepts of the lines given then convert them to standard form. Let me know if I confused you.

anonymous · Answer

And by the way, this is the online graphing calculator: https://www.desmos.com/calculator The last post didn't copy it correctly.

geekfromthefutur · Answer

O ok bro thx 4 the calculator cuz I still have half of another segment to do and this would help out alot

anonymous · Answer

No problem hun, and http://www.purplemath.com/modules/exponent5.htm has a very good explanation on number 2. (I would do it myself, but I'm prone to confusing people with my explanations.)