{(-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

you have 6 cupcakes

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.