4x+y=26 replace y with (x-4) & solve for x in this equation.
4x+(x-4)=26
4x+x=26+4
5x=30
x=30/5 <span>
x=6 answer.
y=6-4
y=2 answer.
Proof.
4*6+2=26
24=2=26
</span>26=26 <span>Y=x-4
</span>
Answer:
Step-by-step explanation:
4/(2+12)
=4/14
=2/7
=0.2857
Answer:
y = x^2 - 2x + 3
The vertex has x component which is the solution of equation:
y' = 0
<=>2x - 2 = 0
<=> x = 1
Substitute x = 1 back into original equation y = x^2 - 2x + 3, then
y = 1^2 - 2*1 + 3 = 1 - 2 + 3 = 2
=> Vertex(1, 2)
Hope this helps!
:)
