Please help with the function rule

Question

Please help with the function rule

x y

-1 1

0 3

1 5

2 7

3 9

Answer 1

(0,3) is the y intercept or y=3. the y intercept is the y coordinate when x =0

as x increases by 1, y increases by 2. the slope change in y divided by change in x = 2/1 = 2

general form of the linear equation in slope intercept form is

y=mx +b. m=2, b =3

the equation is y =2x +3

the function is f(x) = 2x +3