solve the system of equations.

Question

anonymous · Answer

attachment

anonymous · Answer

@kirbykirby

anonymous · Answer

he is great he can help you, not only so you get the answer but you understand it

amorfide · Answer

you know what y is so substitute it into the other equation
and simplify to work out the x value, then substitute x back into the first equation

amorfide · Answer

for example

amorfide · Answer

$$y= 2x ^{2} -3$$
$$y=3x-1$$

We know Y so
$$2x ^{2}-3=3x-1$$

anonymous · Answer

i think its a but im not sure. i just need someone to tell me if im wrong or not.

amorfide · Answer

then you just solve the quadratic, get the x values, and then sub your x values into one of the original equations to get your y values

anonymous · Answer

so its b?

kirbykirby · Answer

no wait..

kirbykirby · Answer

I sort of ignored the "no solution" answer

kirbykirby · Answer

what did you find as your x-values?

anonymous · Answer

i was thinking it was no solution because i worked the problem out. i just wanted someone to double check.

kirbykirby · Answer

Well there is a solution =]

anonymous · Answer

my other thought would be B.

amorfide · Answer

b is correct isn't it?

kirbykirby · Answer

Well not quite. Just substitute $x=-1/2$ and you don't get y=5

anonymous · Answer

so which is it? @kirbykirby

amorfide · Answer

oh  I didn't see "no solution" lmao

amorfide · Answer

the answer will be 
(-1/2, -5/2)
(2,5)

kirbykirby · Answer

I did the same mistake not seeing "no solution" at first xD @amorfide 
But yeah you're right =]