Question

Look at the table of values below.

x y
1 -1
2 -3
3 -5
4 -7

Which equation is represented by the table?

Answer 1

y = -2x + 1

Explanation:

The amount from -1 to -3 is -2

The amount from -3 to -5 is -2

The amount from -5 to -7 is -2

So you can conclude that 2 is being subtracted each time, but you still have to find what the value for number zero is so you add 2 to -1 and you get 1

So the equation is y = -2x +1