The unchanging value of the ratio between two proportional quantities is the constant of proportionality. the constant rate. the x-value of an ordered pair. the y-value of an ordered pair. not

A. The constant of proportionality.

Step-by-step explanation:

We are asked to choose the option that represents the unchanging value of the ratio between two proportional quantities.

Proportionality is of two types:

Since we know that a directly proportional equation is in form , where x and y are two directly proportional quantities and k is the constant of proportionality.

In direct proportion when x increase y also increases and when x decreases, y decreases as well.

Since we know that a inversely equation is in form , where x and y are two inversely proportional quantities and k is the constant of proportionality.

In inverse proportionality, when x increases y decreases and when x decreases, y increases.

Since constant of proportionality doesn't change either in direct proportion or in inverse proportion, therefore, our answer is the constant of proportionality and option A is the correct choice.

your answer is the last one

step-by-step explanation:

divide the length of a'c' by the length of ac to get a scale factor of two

& then reflect vertically (over the y-axis)

so your answer is dilation by a scale factor of 2 followed by reflection over the y-axis

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.