{(-15, 3), (-5, 1), (0, 0), (10, -2)} Constant:
Equation:
Direct & inverse variation (identify the constant of variation, then write the direct variation equation to represent the relationship) please helppp!!

-- Constant

-- Equation

Step-by-step explanation:

Given

Solving (a): The constant of variation

The given parameter is of the form (x,y) and the variation constant is calculated using:

For:(-15,3), k is calculated as

For (-5,1)

The equation is calculated using the following rule:

Substitute for k

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19