PLEASE HELP ASAP I'LL GIVE BRAINLIEST 100 POINTS!! The graph below shows how the temperature of a substance varies with time during a certain science experiment. (attached)

Assume that there are no other x-intercepts besides those showing on the graph. Which equation best models the function f(x) , the Celsius temperature of the substance after x minutes, shown in the graph?

A
f(x)=1/9(x−1)^2 (x−3)(x−6)

B
f(x)=2(x−1)^2 (x−3)(x−6)

C
f(x)=1/9(x+1)(x+3)(x+6)

D
f(x)=2(x+1)(x+3)(x+6)

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!