Question

Write a function rule for the table.
X | f(x)
0 | 3
1 | 4
2 | 5
3 | 6

A) f(x) = x + 3
B) f(x) = 3x
C) f(x) = x - 3
D) f(x) = -3 - x

Answer 1

Can you look at those two columns and tell me the slope? Hint..what is the change in X and what is the change in Y...

Answer 2

The change is 1 for each side, so therefore the slope change Y/change X = 1

now what is the y intercept point provided? Ask your self, if X is zero..what is Y? - that answer is 3

So now you have M and B of Y = MX + B

Answer 3

or y = 1x + 3