Kevin and Amy are working on an experiment in the science lab. they start with 2.3 grams of oil and add water to get exactly 4.21 grams of solution. to find the amount of water added, they subtract the weight of the oil from the weight of the solution. Kevin calculates the difference to be 3.98 grams; Amy calculates it to be 1.91 grams. who is correct?

Answer = I.D.K

Step-by-step explanation: oh its

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:

(x) - (y) = (1 + 4i)