Emily filled an empty horse trough with water the water level, in centimeter is proportional to time elapsed in imutes since she began filling the trough the graph shows this realshionship a) identify the constand of proportionality
b) identify the unit rate: per
c) explain what (6,21) meand in terms of the graph.
D) what would the water level be after 20 min (hint use proportion)

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

5

step-by-step explanation: