Question

complete the equation describing how x and y are related.

x	y
-	-
0	-1
1	3
2	7
3	11
4	15
5	19

y = 4x+?
enter the number that belongs in the green box.

Explanation:

Step1: Select a pair of x and y values

Let's take x = 0 and y = - 1.

Step2: Substitute into the equation

Substitute x = 0 and y=-1 into y = 4x + b (where b is the unknown in the green - box). We get - 1=4×0 + b.

Step3: Solve for b

Since 4×0 = 0, the equation simplifies to - 1=b.

Answer:

-1