Which equation represents a proportional relationship? A) y = 2 5 x

B) y = 1 3 x + 5

C) y = −3x − 1

D) y = 2x + 0.5

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Step-by-step explanation:

A) y = 25 x

Step-by-step explanation:

here's the solution

we can see, y = 25x , it means for every value of y , x is 25 times , so if x increase or decreases the value of y changes apparently, so they are proportional relationship.

i don't know gravity?

step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.