On Monday, Marley rode 8 miles on a bike. On Tuesday, she rode 8 times more than she did Monday. On Wednesday, she rode an additional 9 miles. How many miles has Marley ridden so far this week?

The answer is 81!

Step-by-step explanation:

8 x 8 = 64

64 + 8 = 72

72 + 9 = 81

Hope this helped you!

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:

y=1/4x-4

step-by-step explanation: