Question

Compare the linear functions expressed by the equation, y = –x + 3, and by data in the table.

x | -4 | -2 | 1 | 3 |
y | 1 | -1 | -4 | -6 |


Explain how to determine if these two are the same function expressed in different ways

Answer 1

they are not the same function... first put x=1 in the given expression of y and you get -1+3=2
but from the table see that when x=1, y=-4

Answer 2

thank you