Thanks to anyone who helps!

Rate of change, aka the slope, change in y over change in x.  We can pick any two points, let's go with (0,29), (1,23).

m = (23 - 29)/(1 - 0) = -6

Rate of change -6

Initial value, which is the y intercept here, 29.

Initial Value 29.

We have the slope and y intercept so the equation is

y = -6 x + 29

Let's check (4,5),   y =-6(4)+29 = -24 + 29 = 5, good

function 2 has a greater rate of change than function 1

function 2 has a greater y-intercept than function 1

step-by-step explanation:

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)