Hi pl help this is important so
Dance lessons are $100 per couple half hour. Assume a couples want to take dance lessons for a hour. Use mental math to find out the total cost of the dance lesson for the couples.

If a couple wants to do one hour, it would be $20.

Step-by-step explanation:

Since it is $100 for half an hour, you would multiply the cost by 2 to get the cost for one hour

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

the f

last graph i believe

step-by-step explanation:

worked it out i believe