Question

Which graph correctly solves the system of equations below?

y = x2 + 3x + 4
y = x2 + 2x + 1

Answer 1

I can't post the graphs, but I need to find where they intersect.

Answer 2

Do you want to solve it graphically or algebraically?

Answer 3

My answers are in graph form, but I understand the algebraic way better.

Answer 4

Then equate the two functions:
\[x ^{2}+3x+4=x ^{2}+2x+1\]

Answer 5

x squared gets cancelled and then its a simple linear equation.

Answer 6

\[x=-3\]

Answer 7

Yes that's right.