Can someone please me?

Question

anonymous · Answer

attachment

anonymous · Answer

is my answer choice correct? if not, can someone help explain why it's incorrect and solve it step by step?

anonymous · Answer

it looks like its incorrect.

the first step is to set the equations equal to each other, can u do this?

anonymous · Answer

no can you please help me?

anonymous · Answer

I can ^_^

alright, so what are the two equations given?

anonymous · Answer

yes the two were y= -7/2x + 3/2
and y= 1/4x-9/4

anonymous · Answer

great, so we need to set the equations equal to each other. we do this becuase on the graph they intersect at the same y value.

y= -7/2x + 3/2 
y= 1/4x-9/4

becomes
y= -7/2x + 3/2 
1/4x-9/4 = y



1/4x-9/4 = y = y= -7/2x + 3/2 


1/4x-9/4 = -7/2x + 3/2 


make sense?

anonymous · Answer

yes, so then we solve the equation?

anonymous · Answer

@DemolisionWolf

anonymous · Answer

yep, exactly

solve it by getting all the x terms on the same side alone

anonymous · Answer

ok

anonymous · Answer

um I'm not sure if this answer is correct, but I got 1.304... 
sorry if it's wrong I suck at math :'(

anonymous · Answer

@DemolisionWolf

anonymous · Answer

1/4x-9/4 = -7/2x + 3/2 

so add 7/2x to both sides, what do you get?

anonymous · Answer

umm I'm really lost and I got the same answer.... 
can you please show me?

anonymous · Answer

i had 23/8x -9/4= 3/2

anonymous · Answer

1/4x-9/4            = -7/2x + 3/2 
1/4x-9/4 +7/2 x = -7/2x + 3/2 +7/2x
1/4x-9/4  +7/2x  = + 3/2 

now combine like terms
7/2 x is like 14/4x
now the denominators are the same for both x terms, so we can just add them
1/4x + 14/4x = 15/4x

1/4x-9/4  +7/2x  =  3/2 
then becomes
15/4x -9/4  =  3/2 

now, add 9/4 to both sides



(i'm sorry, but I have to log off now, good job today! and good luck!

anonymous · Answer

ok bye

anonymous · Answer

@iambatman, do you mind helping me?

anonymous · Answer

@mathstudent55, can someone please help me?

anonymous · Answer

@myko, please help me ;'(

anonymous · Answer

continuing addin 9/4 bouth sides:
15/4x=3/2+9/4
15/4x=(6+9)/4
15x=15
x=1

anonymous · Answer

now find y

anonymous · Answer

ok, thank you for helping me correctly find x

anonymous · Answer

ok for y i got -2, OMG now i get it *face palm* that wasn't really hard. :D 
thank you soo much @DemolisionWolf and @myko :)