Question

How many solutions does the system have?

x = -4y + 4
2x + 8y = 8

Answer 1

infinetly many... those two lines are the same

Answer 2

Which ordered pair is a solution of the inequality?

y4x - 5

Answer 3

Number 1: x = -4y + 4 => x + 4y = 4
Number 2:
Notice that two lines coincide, every solution for one is also a solution for the other, so there are infinitely many solutions.

Answer 4

Which ordered pair is a solution of the inequality?

\[y \ge4x-5\]