Suppose c and d vary inversely, and d = 2 when c = 17.
a. write an equation that models the variation?
b. find d when c = 68

a. Inversely proportional is an equation with two variables a and b such that when the value of a increases value of b decreases and vise versa. The inverse equation for the given question is

b. The value of the d is 2312 units when c is 68 units.

c and d vary inversely where d is 2 units and c is 17 units.

To convert this proportion into an equation, multiply by a constant k  and find the value of constant.

This is the required equation, now solving further for the value of constant k,

Value of d when the value of c is 68 units.

By the inverse equation,

Hence, the value of the d is 2312 units when c is 68 units.

For more about inverse follow the link given below,

link

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

it's a proportional graph.

step-by-step explanation:

8 x 5 = 40         (and you have -8x and -5y)

x= absiss

y= orderly

so you have a proportional graph.