Question

To which graph does the point (1, 5) belong?

y < x – 1

y < x – 2

y < x + 4

y < x + 5

Answer 1

plug in the point (1,5) to every inequality and see which one is true.

For example the first one: y < x – 1

5 < 1 – 1
5 < 0

Is 0 bigger than 5? No so we know the first one is not the answer.

Answer 2

Do it for the rest and see which one it is.

Answer 3

got it , thanks !

Answer 4

Good job!