Question

Help!! Can someone answer this question??

Answer 1

Answer:

first and last statement listed

Explanation:

because f(c) is showing time, the start of the reaction will be when the y axis = 0 (because 0 time will have passed)

we can see the value of x/c is 20 when y/f(c) is 0 (20, 0)

indicating that the concentration of the chemical is 20 milligrams/liter at the start of the reaction.

{first statement correct}

[second statement incorrect]

Because the x-value [c] is increasing with the y-value [f(c)], we know that the concentration of the chemical increases as the reaction progresses over time. (time increases, concentration increases)

{last statement correct}

[third statement incorrect]

note that "the concentration of the chemical does not fall below 20 milligrams/liter"  does not say anything about when [meaning during the reaction, at the start of, or before are all being considered] the concentration is less than 20 milligrams/liter.

We can see, that before this reaction, the concentration of the chemical does fall below 20 milligrams/liter

[fourth statement incorrect]

hope this helps!!