Question

What is the solution to the following system of equations?
y = x^2 + 10x + 11
y = x^2 + x − 7

(−2, −5)

(2, −5)

(−2, 5)

(2, 5)

Answer 1

Method 1: set them equal to each other, simplify terms so that you have
0 = ax^2 + bx +c and use quadratic eqn formula.

2: Substitute the (x,y) values into both and see which set fits.

Answer 2

whats method 2?

Answer 3

Method 2 is try (x,y) candidate values in each eqn.

Answer 4

the answer is A !!