Functions Unit

Question

Write a function rule for the table of values.

x     y
0     1
1     3
2     5
-3   -5

Answer 1

The slope between any two points is 2.

Example: (0,1) to (1,3) = (3-1)/(1-0) = 2

The y-intercept is 1 [at point (0, 1)]

 

f(x) = 2x+1