Astudent project measured the increase in the heart rates of fellow students when they stepped up and down for three minutes to the beat of a metronome.
the step was either 5.75 inches or 11.5 inches high and the metronome beat was either 14, 21, or 28 steps per minute.
five students stepped at each combination of height and speed.
1)what are the subjects?
2)what are the factors?
3)what are the treatments?
4)what is the reasonable variable?

40 x 50 = 2000

step-by-step explanation:

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation:

you didn't give an question you just gave us a statement