Question

i can't figure out how to model the function rule y= -2x-3 with a table of values

Answer 1

y = -2x - 3

now just sub a number in for x and solve for y.
Lets make x = 1
y = -2(1) - 3
y = -2 - 3
y = -5
so when x = 1, y = -5

now lets make x = 2
y = -2(2) - 3
y = -4 - 3
y = -7
so when x = 2, y = -7

and you can continue subbing in any number for x to find y....and there you have your table

Answer 2

this is what your table is gonna look like. do what texaschic said to fill it up :)