What are functions exactly i just kind of want a straightforward answer

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: