SOLUTION: 3. Solve the system of equations. Show your work. y= x^2-3x+4 x+4=4

Algebra ->  Equations -> SOLUTION: 3. Solve the system of equations. Show your work. y= x^2-3x+4 x+4=4      Log On


   



Question 1127545: 3. Solve the system of equations. Show your work.

y= x^2-3x+4
x+4=4

Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.
From the second equation you get momentarily x = 0.


But I think  (almost sure !)  that you wrote your system  INCORRECTLY.


Double check with your source !



Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
y=+x%5E2-3x%2B4....eq.1
x%2B4=4....eq.2
------------------------
x%2B4=4....eq.2...solve for x
x=4-4
x=0....for any point on the y-axis, x=0 ;
furthermore, if any point for which the x-coordinate is equal to zero will be on the y-axis
substitute x=0 in eq.1

y=+0%5E2-3%2A0%2B4....eq.1
y=+4
solution: intersection point
(0,+4)