23. There are 25 students in Roses's Speech class. Rose has not yet been called on to give her required oral report, but 10 other students have given
their reports. If 2 students are absent, what is the probability that Rose will
be called on to give her report assuming one student gives a report each
day.
A) 10/13
B) 1/23
O C) 1/13
D) 10/23

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:

use formula for the circle a=3.14

step-by-step explanation:

the answer to question 1 is -8, 28.

step-by-step explanation: