Expert: Paul Klarreich - 5/27/2008

Question
Please could you help me work out the equation and show how you have done it.
Y=11x+3
Y=4xSquared

X= y=
or
x= y=

Thankyou

Answer
Questioner:   daryl
Category:  Advanced Math
Private:  No
 
Subject:  Advanced simultaneous equations
Question:  Please could you help me work out the equation and show how you have done it.
Y=11x+3
Y=4xSquared

X= y=
or
x= y=

Thankyou
-----------------------------------------------
Hi, Daryl,

Do you really want me to 'help work out ..." or do you just want it done for you?  If you want help, send me the work you already tried to do and I'll try to help and find where yuo are going wrong.

If you just dump the question on me, I will assume you just don't know how to get started, so that's all I will do.

Use substitution:

Y=11x+3
Y=4x^2

11x + 3 = 4x^2

Now solve it like any other quadratic equation. (Hint: it can be factored.)

You will get two values of x.  Take each one and substitute it back into either equation.

I'll leave that to you.  If you get messed up, send me the work.